Nitrated coupler compounds useful in direct dyeing and simultaneous oxidation and direct dyeing of keratinic fibers

The present invention relates to the dyeing of keratinic fibers particularly living human hair using compounds which are employed as direct dyes or as a coupler in oxidation dyeing procedures. These compounds are substituted 2-nitro meta-amino phenols.
It is known, for instance, from French Pat. No. 2,180,651, that nitrated phenols are capable of being employed both as a direct dye and as a component in an oxidation dyeing operation. However, the structure of the compounds of the present invention is different from that of the compounds of said French patent, and properties of the compounds of the present invention which are examined hereafter are very advantageous. Moreover, 2-nitro-3-amino phenol is also a known compound, its preparation being set forth in J. Chemical Society (C 1937, p. 1055). However, there is no mention in this publication of its dyeing characteristics.
As their name indicates, direct dyes are colored compounds used as such in dye compositions, and they participate neither in a simple oxidation nor in an oxidative condensation reaction. On the other hand, oxidation dyes result from the condensation of (1) an aromatic or heterocyclic compound possessing either amino or hydroxy groups in para or ortho position relative to one another, which are termed oxidation bases and (2) aromatic or heterocyclic compounds possessing amino or hydroxy groups in meta position relative to one another which are termed couplers. The oxidation bases and couplers are generally colorless or weakly colored compounds which yield on condensation, in the presence of an oxidizing agent, a composition useful for obtaining a permanent coloration of keratinic fibers. This composition can be prepared at the moment of use, or even in situ by the successive application of a composition containing the coupler and another composition containing the oxidation base, or vice versa. The dyeing composition thus obtained is in reality a mixture containing, in addition to the colored condensation product, some non-condensed bases or couplers, and more often than not excess oxidizing agent which is capable of continuing to react on the compounds contained in the said composition.
Generally couplers cannot be used alone as a dye. Further, they often lack stability in oxidation compositions containing an alkaline agent. Moreover, most nitrated couplers of the benzene series, if they possess their own color, they often do not couple with a desired oxidation base or they couple only partially or only very slightly therewith.
The present invention which overcomes the above disadvantages relates to a dye composition for keratinic fibers which, from the fact that this composition contains a coupler having its own color characteristics and that this coupler is sufficiently stable in an ammoniacal medium, in an alcoholic medium and a hydroalcoholic medium, is capable of being employed, either in direct dyeing procedures or in oxidation dyeing procedures in the presence of an oxidation base, or simultaneously in an oxidation and direct dyeing procedure when excess coupler is employed. Moreover, the compositions of the present invention employing an ammoniacal medium containing the couplers of the invention exhibit very good stability and storage characteristics in vats or bottles.
Furthermore, those prior nitrated compounds which have been known in a general way as couplers do not in fact constitute true couplers for the dyeing of hair, for their speed of coupling is too weak to be effectively employed as a coupler.
The composition of the present invention contains in an aqueous medium either (a) at least one compound having the formula ##STR2## wherein
R is selected from the group consisting of hydrogen, alkyl and halogen; and
R' is selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, carbamylalkyl, mesylaminoalkyl, aminoalkyl, acylaminoalkyl, monoalkylaminoalkyl, dialkylaminoalkyl, piperidinoalkyl, morpholinoalkyl, carbamoyl, acyl or carbalkoxy; or
(b) at least one compound of formula (I) and at least one oxidation base selected from the group consisting of a compound having the formula ##STR3## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each independently are selected from the group consisting of hydrogen, alkyl, halogen and alkoxy;
Y is selected from the group consisting of hydroxyl and --NR.sub.5 R.sub.6 wherein R.sub.5 and R.sub.6 each independently are selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, carbamylalkyl, mesylaminoalkyl, aminoalkyl, acylaminoalkyl, sulfoalkyl, morpholinoalkyl, piperidinoalkyl, and a heterocyclic compound carrying on the ring thereof in para position either two amino groups, or an amino group and a hydroxy group. This oxidation base can be present in the form of a free base as the the acid addition salt thereof, such as the hydrochloride, hydroaromide or sulfate thereof. The alkyl and alkoxy moieties of the substituents defined above in formulas I and II contain from 1-4 carbon atoms.
The compounds of formula (I) when used alone in the dyeing of keratinic fibers impart to said fibers shades which are situated in the range of orange and pink as indicated in Examples T1, T2, T5 and T3. These compounds, however, can also easily be employed in combination with other direct dyes such as anthraquinone dyes, azo dyes, and nitrated dyes such as the derivatives of nitroparaphenylenediamine, indophenols, indamines and indoanilines.
In the situation where the dye composition of the present invention contains both a compound of formula (I) and a compound of formula (II), and if the said dye composition also includes a molar excess of coupler (I) relative to the quantity of base (II), the compounds of formula (I) play the role both of a direct dye and as a coupler in an oxidation dyeing operation. Thus the compounds of formula (I) react in an alkaline medium and are oxidized with the oxidation bases indicated above, to give rise at the interior of the fiber colored molecules which can be an indophenol or indoaniline depending upon the nature of the particular oxidation base employed.
If the dye composition of the present invention contains a coupler and an oxidation base in stoichiometric quantities or even if the said composition contains excess oxidation base relative to the said coupler a conventional type oxidation dyeing composition is produced.
Representative couplers of formula (I) which are particularly interesting include the following:
2-methyl-5-amino-6-nitro phenol,
2-methyl-5-N-.beta.-hydroxyethylamino-6-nitro phenol,
2-methyl-5-N-methylamino-6-nitro phenol,
2-chloro-5-amino-6-nitro phenol,
2-methyl-5-acetylamino-6-nitro phenol,
2-methyl-5-carbethoxyamino-6-nitro phenol, and
2-methyl-5-N-piperidinoethylamino-6-nitro phenol.
In addition to the couplers of formula (I), there can also be used a further coupler compound. Representative of these further couplers are metadiphenols; metaaminophenols or their derivatives and principally compounds having the formula: ##STR4## wherein R is selected from the group consisting of hydrogen, alkyl and halogen and R' is selected from the group consisting of hydrogen and alkyl, wherein the alkyl moieties have 1-4 carbon atoms; metadiamines; heterocyclic coupler; and diketonic compounds.
Representative of these further couplers are the following compounds:
6-hydroxy phenomorpholine,
3-N-.beta.-hydroxyethylamino phenol,
6-amino phenomorpholine,
2-methyl-5-N-.beta.-hydroxyethylamino phenol, resorcinol,
2,6-dimethyl-3-amino phenol,
2-methoxy-5-N,.beta.-hydroxyethylamino phenol,
2,4-diamino anisole dihydrochloride, and
2-methyl-5-acetylamino phenol.
Representative oxidation bases of formula (II) exhibiting the greatest interest relative to the present invention are the following compounds:
2-methyl-4-amino-N-mesylamino ethyl aniline, sulfate,
3-methoxy-4-amino-N,N-dimethyl aniline sulfate,
2,6-dimethyl-4-amino phenol,
4-amino-N-acetylamino ethylaniline sulfate,
3-methyl-4-amino-N,N-ethyl, carbamylmethylaniline,
3-methy-4-amino-N,N-ethyl, mesylaminoethylaniline,
N-methylparaphenylenediamine dihydrochloride,
paratolylenediamine dihydrochloride,
para-amino phenol,
2,6-dimethyl-3-methoxy paraphenylene diamine dihydrochloride,
2-methyl-5-methoxy paraphenylenediamine dihydrochloride,
2-methoxy-4-amino-N,.beta.-hydroxyethylaniline sulfate,
4-amino-N-mesylaminoethylaniline sulfate,
2,5-dimethyl-4-amino phenol,
methoxy paraphenylenediamine dihydrochloride,
paraphenylenediamine,
4-amino-N,N-ethyl, carbamylmethyl aniline,
4-amino-N,N-di-.beta.-hydroxyethylaniline sulfate,
N,N-dimethyl paraphenylenediamine dihydrochloride,
chloroparaphenylenediamine,
3-methyl-4-amino-N-methylaniline dihydrochloride,
3-methoxy-4-amino-N-methylaniline dihydrochloride,
4-amino-N,.beta.-hydroxyethylaniline sulfate,
2-chloro-4-amino-N-methylaniline sulfate,
2-methyl-4-amino-N-methylaniline sulfate,
2-methoxy-4-amino-N-carbamylmethylaniline,
4-amino-N,N-ethyl, .beta.-piperidinoethylaniline trihydrochloride,
4-amino-N,N-ethyl, .beta.-sulfoethylaniline,
3-methoxy-4-amino-N,.beta.-hydroxyethylaniline sulfate,
2-chloro-4-amino-N, acetylaminoethylaniline sulfate,
2-methyl-4-amino-N,.beta.-hydroxyethylaniline sulfate,
3-methyl-4-amino-N,N-ethyl, .beta.-sulfoethylaniline,
3-methyl-4-amino phenol hydrobromide,
2,5-diamino pyridine dihydrochloride,
2,4-dihydroxy-5,6-diamino pyrimidine,
2-chloro-5-N-.beta.-hydroxyethylamino phenol,
2,6-dimethyl-3-N-.beta.-hydroxyethylamino phenol,
m-aminophenol,
2-methyl-5 ureidophenol, and
3-amino-4-methoxy phenol.
In addition to the oxidation bases of formula (II), another oxidation base can also be employed. Representative of said other oxidation bases are heterocyclic bases such as 2,5-diamino pyridine and 2-hydroxy-5-amino pyridine.
Representative other direct dyes usefully employed in the compositions of the present invention include the following:
(4-nitro-5-N-methylamino) phenyl carboxymethylether,
3-nitro-4-N'-methylamino-N,N-methyl, .beta.-hydroxyethylaniline,
tetraamino anthraquinone,
nitro-meta phenylenediamine,
3-methoxy-4,6-diamino-4'-hydroxy diphenylamine trihydrochloride, and
N-[(4'-amino)phenyl]-2-methyl-5-amino benzoquinoneimine.
The dye compositions of the present invention containing in combination at least one nitrated compound of formula (I) and at least one oxidation base of formula (II) provide strong and very stable colorations which exhibit remarkable stability to light, to weather and to washing. When the oxidation base employed is a para-aminophenol of formula (II) wherein Y is hydroxyl, an indophenol which provides coppery shades, which are more or less orange pink, is produced.
When as the oxidation base there is employed a paraphenylenediamine of formula (II) wherein Y is --NR.sub.5 R.sub.6, an indamine providing strong green, blue and violet colorations is produced. In particular, those paraphenylenediamines carrying a methoxy group on the ring provide, on condensation with the couplers of formula (I), very strong blue colorations having good stability to light and to weather, as shown in Examples T22, T37, T48 and T51.
The compounds of formula (I) provide then, by oxidative condensation with para-aminophenols as well as with paraphenylenediamines, shades which are equally stable to light and to weather. This is not the case, for example, with other couplers such as 2,4-diamino anisole which give with para amino phenol an orange coloration unstable to light.
It has also been known that meta-diamines produce, as do the nitro meta-phenols of the present invention, a range of blue colorations when used with para phenylene damines, although when heretofore known meta-diamines are employed with the para aminophenols, yellow colors which are unstable to light are produced. On the other hand, the nitrated couplers of the present invention provide extremely stable colorations, by coupling not only with para phenylene diamines but also with para amino phenols.
Thus, in accordance with the present invention, there can be included in a single dye composition the coupler of formula (I) and both a para amino phenol and a para phenylene diamine, of formula (II). According to the choice of the para phenylenediamine, there is obtained either a range of chestnut and beige colors having good stability to light, as evidenced in Examples T25, T27, T43, T31 and T57, or a range of greys also having a good stability to light, the dark grey shades being preferably obtained with a para phenylenediamine carrying a methoxy group on the ring, as shown in Examples T44, T52, T56 and T14.
Finally, the dye composition of the present invention can contain a sufficient excess of compound (I) in the presence of one or more oxidation bases of formula (II) so as to provide, because of the good stability of the compound of formula (I), in the presence of oxidizing and alkalinizing agents, and also because of its good coloring characteristics, the attainment in a very reproducible manner the coloration obtained in situ by the nitro-indophenols, or the nitro-indoanilines resulting from a previous oxidative condensation with oxidation bases.
The couplers of the present invention exhibit high coupling speed even, vis-a-vis, those bases with which the coupling is generally effected in a slow fashion.
The dye composition of the invention contains a coupler component, which is principally the coupler of formula (I), in a total amount of 0.002 to 2 weight percent, and an oxidation base which is principally the oxidation base of formula (II) in a total amount of 0 to 2 weight percent, based on the total weight of said dye composition. Further, the composition of the present invention has a pH which can vary from 5 to 11. The molar ratio of coupler:oxidation base can vary from 1:5 to 5:1, in those instances when an oxidation base is included in the said composition. However, particularly interesting compositions are those wherein the ratio of coupler:oxidation base is greater than 1, since in these compositions the coupler also functions as a direct dye.
The dye compositions of the present invention can be provided in the form of non-ionic, amphoteric, cationic or anionic compositions.
Further, the compositions of the present invention can also be employed with an aqueous or hydroalcoholic carrier, where, in the latter, the alcoholic component is a lower alkanol, preferably ethanol or isopropanol, or even another alcohol type solvent such as a glycol, for instance, butyl glycol, the monoethyl ester of diethylene glycol and the like, in an amount ranging up to about 40 weight percent of said composition, preferably about 1 to 40 weight percent.
The composition of the present invention can also contain a cationic, anionic or amphoteric surface active agent in an amount ranging up to 20 weight percent. Representative surface active agents include fatty alcohol sulfates, fatty acid ethanolamides, polyoxyethylenated fatty acids and alcohols, thickening agents such as carboxymethyl cellulose, and higher fatty alcohols. The compositions of the present invention can contain as a carrier in an aqueous medium, principally the following products or mixtures: carboxymethyl cellulose-ethyl alcohol; alkaline lauryl sulfate-oxyethylenated alcohol-ethylenediamine tetra-acetic acid; lauryl alcohol; alkaline alkylsulfates-Carbopol 934-butyl glycol; lauryl alcohol-butyl glycol; propylene glycol-nonylphenol; diethanolamide of the fatty acids of copra-propylene glycol; nonylphenolbutyl glycol; diethanolamide of the fatty acids of copraethanol; oleyl alcohol-propylene glycol; Carbopol 934-ethanol; nonylphenol-ethanol; oleyl alcohol-butyl glycol; nonylphenolethyl glycol; carboxymethyl cellulose-propylene glycol; and lauryl alcohol-butyl glycol.
The composition of the present invention can also contain an oxidizing agent such as H.sub.2 O.sub.2, potassium ferricyanide or a persalt such as ammonium persulfate.
Moreover, the composition of the present invention can contain perfumes; antioxidant agents; sequesterants; an alkalinizing agent such as ammonia, sodium phosphate, sodium carbonate or an alkanol amine; or an acidifying agent such as phosphoric acid, lactic acid, acetic acid and the like.
The present invention also relates to a process for dyeing keratinic fibers, especially living human hair, employing the compounds of formula (I) either as a direct dye or as a coupler in the presence of an oxidation base.
When the compound of formula (I) is used as a direct dye, the composition is directly applied to the keratinic fibers and the composition is permitted to remain in contact therewith for a period of time ranging from about 3 to 30 minutes, preferably 10 to 30 minutes. Thereafter the fibers are rinsed, shampooed and then dried.
However, it is in the use of the compounds of formula (I) of the present invention in an oxidation dyeing operation that is of the greatest interest. According to a first embodiment, there is initially prepared a cosmetic composition for application to the hair containing both the coupler of formula (I) and an oxidation base, preferably an oxidation base of formula (II). At the moment of use, there is added thereto a cosmetic oxidizing agent, i.e. H.sub.2 O.sub.2, a ferricyanide or a persalt and the resulting mixture is then thoroughly homogenized with the resulting homogeneous mixture then being applied to the keratinic fibers, the said mixture being permitted to remain in contact with the said fibers for a period of time ranging from about 10 to 30 minutes. Thereafter the fibers are rinsed, shampooed and then dried.
With the couplers of formula (III): ##STR5## in which R has the aforementioned values and R" is hydrogen, alkyl, hydroxy alkyl, carbamylalkyl mesylaminoalkyl, aminoalkyl, acylaminoalkyl, monoalkylaminoalkyl, dialkylaminoalkyl, piperidinoalkyl or morpholinoalkyl, any cosmetic oxidizing agent can be employed with comparable results. The alkyl moiety of R" in formula (III) contains 1-4 carbon atoms.
However, with compounds of formula (IV): ##STR6## wherein R has the aforementioned values and R'" is carbamoyl, acyl, or carbalkoxy, wherein the alkoxy moiety has 1-4 carbon atoms, better results are obtained by using as the oxidizing agent a persalt, preferably, ammonium persulfate.
Because of the rapidity with which the compounds of formula (I) couple with an oxidation base, an important embodiment of the present invention comprises carrying out the dyeing in situ, principally in the case of dyeing living human hair, thereby providing some particularly desirable effects and notably the attainment of variations in the color produced. To this end, there can initially be applied to the hair either a solution containing the coupler of the present invention and then a solution containing an oxidation base, the oxidizing agent being contained in one or the other of said solutions; initially there can be applied to the hair a solution containing an oxidation base and then a solution containing the coupler of the present invention, the oxidizing agent being contained in one or the other of said solutions. In either instance, the solutions are permitted to remain in contact with the hair for a period of time ranging from about 10 to 30 minutes.
The present invention then further relates to:
(a) the compounds of formula (I);
(b) a process for preparing the compounds of formula (I);
(c) indo compounds resulting from the coupling of a coupler of formula (I) and an oxidation base, particularly an oxidation base of formula (II);
(d) a process for the preparation of said indo compounds of (c);
(e) a composition containing said indo compounds of (c); and
(f) a process for using the composition containing said indo compounds of (c).
The novel compounds of formula (I) are those for which R and R' have the values stated above with the proviso that R and R' are not, simultaneously, hydrogen.
The compounds of formula (I) can be prepared, either by nitration of corresponding meta-amino phenols, or by substitution on the nitrogen atom of the amino group of a nitrated meta-amino phenol of formula (I) in which R' is hydrogen.
In accordance with a first embodiment, the process comprises (a) nitrating with the use of nitric acid in the presence of sulfuric acid in mixture or not with phosphoric acid or acetic anhydride or ethyl phosphate, at a low temperature with agitation, a compound having the formula (V): ##STR7## wherein R is alkyl or halogen and R' is acyl, preferably acetyl, so as to provide a mixture of isomers nitrated on the ortho and para positions relative to the phenol function, as well as a small amount of a derivative dinitrated at the ortho and para positions;
(b) separating from the reaction mixture the derivative nitrated in the ortho position;
(c) treating the thus separated ortho nitrated derivative with HCl to liberate the primary amine function; and
(d) optionally effecting mono-substitution of the primary amine group, by a radical R' such as defined in formula (I) above, said R' being other than hydrogen.
In this first embodiment, the addition of acetic anhydride, phosphoric acid or ethyl phosphate, avoids mass solidification, by crystallization, due to the use of sulfuric acid.
While the operation of the second embodiment is well known, the attainment of a substitution, only on the amino group, while leaving intact the phenol function, was completely unexpected.
According to this second embodiment, the process comprises
(a) mono-substituting the --NH.sub.2 group on a compound of the formula ##STR8## in which R is lower alkyl having 1-4 carbon atoms or halogen, with a radical R' having the value defined for the compound of formula (I) but different from hydrogen, in an aqueous alkaline medium or in a water-organic solvent medium, at a temperature between 25.degree. C. and the reflux of the solvent or mixture of solvents;
(b) permitting the reaction mixture to stand at ambient temperature; and
(c) separating from the reaction mixture the desired product which has precipitated by cooling or by the addition thereto of a solvent.
The implementation of this second embodiment provides principally chromatographically pure 2-methyl-5-methylamino-6-nitro phenol.
A third embodiment permits to obtain with a higher degree of purity, compounds of formula (I) wherein R' is acetyl, R being lower alkyl containing 1-4 carbon atoms or halogen. In accordance with this embodiment, the process comprises
(a) reacting a compound of formula (VI) wherein R has the values given above with a mixture of acetic anhydride-sulfuric acid, with agitation;
(b) adjusting the temperature of the reaction mixture to ambient temperature, eliminating excess acetic anhydride by the addition of ice water and separating therefrom the corresponding diacetylated product;
(c) deacylating the phenol function with an alkaline solution; and
(d) precipitating the desired product, with a sufficient amount of acetic acid. Optionally, the precipitated product after separation from the reaction mixture can be recrystallized.
The implementation of this third embodiment produces advantageously, 2-methyl-5-acetylamino-6-nitro phenol in a pure state.
From the fact that the compounds of formula (I), wherein R and R' are not simultaneously hydrogen, are new compounds, it results from it that the compounds obtained by condensation with oxidation bases and principally with oxidation bases of formula (II) are also new compounds which are besides contained in the oxidation dye compositions of the present invention. This condensation is carried out either before the use of the dye composition, or in situ by successive application of a solution containing the compound of formula (I) and a solution containing an oxidation base, on keratinic fibers.
These new compounds comprise indo-nitro anilines or indo-nitrophenols having the formula ##STR9## wherein R, R', R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and Y have the values mentioned for the compounds of formula (I).
These nitrated indophenols and nitrated indamines provide strong colors which are very stable and exhibit remarkable stability to light, to weather and to washing.
Representative compounds of formula (VII) include the following benzoquinoneimines:
N-[(4'-hydroxy)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[(4'-hydroxy-2'-chloro)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[(4'-amino-2'-methoxy-5'-methyl)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[(4'-amio-2',5'-dimethyl)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[(4'-amino-2',5'-dimethyl)phenyl]-2-methyl-5-acetylamino-6-nitro benzoquinone imine,
N-[(4'-amino-3'-chloro)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[(4'-amino-2',5'-dimethyl)phenyl]-2-methyl-5-carbethoxyamino-6-nitro-benzoquinoneimine,
N-[(4'-methylamino-3'-chloro)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[(4'-.beta.-hydroxyethylamino-3'-methoxy)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[(4'-dimethylamino-2',6'-dimethyl)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine,
N-[4'-(ethylcarbamylmethyl)amino phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine and
N-[(4'-ethyl,.beta.-morpholinoethylamino-2'-methyl)phenyl]-2-chloro-5-amino-6-nitro benzoquinoneimine.
The compounds of formula (VII) can be prepared in accordance with a first process wherein a nitrated metaaminophenol of formula (I) wherein R and R' have the values given above is reacted in an alkaline medium with a compound of formula (II) wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and Y have the values given above. An oxidizing agent is added thereto with agitation. Optionally, the reaction mixture is cooled after which the reaction mixture is left to rest at ambient temperature to obtain by precipitation the compound of formula (VII).
In accordance with a second process, a compound of formula (I) wherein R and R' have the values given above is reacted in an alkaline medium with a compound of formula (VIII) ##STR10## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 have the values given above. The desired product is obtained by precipitation which occurs when the above reaction mixture is permitted to stand at ambient temperature.
These two processes can be carried out in an aqueous, hydroalcoholic or hydroacetonic medium, which is generally ammoniacal. In the first process, there can be employed as the oxidizing agent, H.sub.2 O.sub.2, potassium ferricyanide or a persalt such as ammonium persulfate.
The nitro-indophenols and the nitro-indoanilines formed by the condensation at the interior of the keratinic fiber, as well as at the exterior thereof when an oxidation dye composition is employed, can be prepared separately and isolated. In this form, the dye is employed as a direct dye and can be incorporated into a dyeing and hair setting lotion, the dyeing thus occurring only at the exterior of the keratinic fiber.
The dyeing and hair setting lotion according to the present invention, contains at least one compound of formula (VII) in an amount of 0.01 to 2 weight percent, preferably from 0.05 to 1 weight percent, in a hydroalcoholic carrier containing from 10 to 70 and preferably from 20 to 50 weight percent alcohol, in the presence of a cosmetic film forming polymer present in an amount ranging from 0.5 to 4, and preferably from 1 to 3, weight percent. The pH of the dyeing and hair-setting lotion composition can range from 4 to 10.5 and preferably from 5.5 to 10. The hydroalcoholic solution contains a low molecular weight alkanol such as, preferably, ethanol or isopropanol.
Representative cosmetic resins usefully employed in the dyeing and hair-setting lotion composition of the present invention include the following for which there is indicated a chemical name, optionally a commercial name, and if necessary a phyico-chemical characteristic:
PVP K30--Polyvinylpyrrolidone (MW--40,000);
PVP K60--Polyvinylpyrrolidone (MW--160,000);
PVP K90--Polyvinylpyrrolidone (MW--360,000);
(PVP/VA) E735--Polyvinylpyrrolidone/vinyl acetate, 70/30, MW--40,000;
(PVP/VA) E535--Polyvinylpyrrolidone/vinyl acetate, 50/50;
(PVP/VA) E335--Polyvinylpyrrolidone/vinyl acetate, 30/70, MW--160,000;
(PVP/VA) S630--Polyvinylpyrrolidone/vinyl acetate, 60/40, viscosity determined at 25.degree. C. for a 5% solution in ethanol--3.3 to 4 cps, as well as the following resins for which one indicates the specific viscosity (cps) measured for a 1% solution in methylethyl ketone at a temperature of 25.degree. C.;
methylvinylether/maleic anhydride, 50:50, known under the mark "Gantrez AN 119", viscosity--0.1-0.5;
"Gantrez AN 139" viscosity--1.0-1.4;
"Gantrez 149" viscosity--1.5-2;
"Gantrez AN 169" viscosity 2.6-3.5;
"Gantez ES 225", the monoethyl ester of Gantrez AN 119;
"Gantrez ES 335-1", the isopropyl monoester of "Gantrez AN 119";
"Gantrez ES 425", the butyl monoester of "Gantrez AN 119";
"Gantrez ES 435", the butyl monoester of "Gantrez AN 119";
crotonic acid/vinyl acetate, 10:90, MW--50,000;
Resine 28-13-10, copolymer of vinyl acetate/crotonic acid, MW--20,000;
terpolymer of carboxylated vinyl acetate (intrinsic viscosity--0.32 in acetone at 30.degree. C.);
terpolymer of vinyl acetate, allyl stearate and allyloxy acetic acid (80:15:5)--4.4 to 5 cps in a 5% solution in dimethyl formamide at 35.degree. C.,
"Gafquat 734"--quaternary copolymer of polyvinylpyrrolidone in a 50% solution of ethyl alcohol, MW--100,000; and
a terpolymer of methyl methacrylate, stearyl methacrylate and dimethyl amino ethyl methacrylate, completely quaternized with dimethyl sulfate (20.15:22.35:57.50% by weight), intrinsic viscosity at 8-12 cps in a 5% solution in dimethylformamide at 35.degree. C.
The dyeing and hair-setting lotions of the present invention can also contain other direct dyes such as anthraquinone dyes, nitrobenzene dyes, as well as indamines, indophenols and indoanilines having a formula different from the indo compounds of formula (VII).
These lotions can be applied on any type of keratinic fiber, they are employed preferably on naturally white or previously bleached living human hair. The application is carried out on hair still moist after washing and rinsing, the hair then being rolled up so as to set it and then dried in a conventional manner.
The following non-limiting examples in which the temperatures are indicated in degrees centigrade, have for their end to illustrate the various aspects of the present invention. Unless otherwise indicated, all parts and percentages are by weight.
__________________________________________________________________________SUMMARY TABLE OF COMPOUNDS OF FORMULA (I) ##STR11## PREPARED IN EXAMPLES I TO VIIExample No. Compound of Formula (I) Empirical Formula Melting Point (.degree.C.) R R'(1) (2) (3) (4) (5) (6)__________________________________________________________________________I 2-methyl-5-amino- C.sub.7 H.sub.8 N.sub.2 O.sub.3 130 CH.sub.3 H 6 nitro-phenolII 2-methyl-5-N--B--hydroxy- C.sub.9 H.sub.12 O.sub.4 N.sub.2 103 CH.sub.3 CH.sub.2 CH.sub.2 OH ethylamino-6 nitro-phenolIII 2-methyl-5-N--methylamino- C.sub.8 H.sub.10 N.sub.2 O.sub.3 140 CH.sub.3 CH.sub.3 6 nitro-phenolIV 2-chloro-5 amino- C.sub.6 H.sub.5 N.sub.2 O.sub.3 Cl 184 Cl H 6 nitro-phenolV 2-methyl-5 acetylamino- C.sub.9 H.sub.10 N.sub.2 O.sub.4 147 CH.sub.3 COCH.sub.3 6 nitro-phenolVI 2-methyl-5 carbethoxy- C.sub.10 H.sub.12 N.sub.2 O.sub.5 115 CH.sub.3 COOC.sub.2 H.sub.5 amino-6 nitro-phenolVII 2-methyl-5-N--piperidino- ethylamino-6 nitro-phenol C.sub.14 H.sub.21 O.sub.3 N.sub.3 82 CH.sub.3 ##STR12##__________________________________________________________________________

EXAMPLES OF PROCESS FOR THE PREPARATION OF COMPOUNDS OF FORMULA (I)
Example No. I
Preparation of 2-methyl-5-amino-6-nitro phenol in accordance with the following reaction scheme: ##STR13##
1st phase
Preparation of 2-methyl-5-acetylamino-6-nitro phenol
0.606 mole (100 g) of 2-methyl-5-acetylamino phenol is dissolved, with agitation, in 900 cc of sulfuric acid (d=1.83) at a temperature close to 0.degree. C. 20 cc of phosphoric acid are then added and the mixture is cooled to -30.degree. C. Thereafter, there are slowly added, with good agitation, while maintaining the temperature between -33.degree. and -30.degree. C., 25 cc of nitric acid (d=1.52) in 400 cc of sulfuric acid (d=1.83) over a period of about one hour. The sulfonitric mixture is then poured onto 8 kgs of shaved ice.
The resulting nitrated derivative is then filtered, washed with water and dried, yielding 94 g of the crude nitrated product which contains a little 2-methyl-4-nitro-5-acetylamino phenol.
2nd phase
Preparation of 2-methyl-5-amino-nitro-6-phenol
92 g of the crude nitrated derivative obtained in the 1st phase are dissolved in 200 cc of HCl (d=1.19) to which have been added 200 cc of acetic acid. The resulting mixture is heated to reflux for 11/2 hours. Thereafter the reaction medium is cooled to a temperature of about -15.degree. C. whereby 2-methyl-5-amino-6-nitro phenol hydrochloride precipitates. This precipitate is then filtered, washed with 50 cc of a 50:50 mixture of HCl-acetic acid at -10.degree. C., and treated with 400 cc of water with agitation for a few minutes to yield 2-methyl-5-amino-nitro-6-phenol which is then filtered and crystallized in ethanol, yielding 45 g of chromatographically pure product having a melting point of 130.degree. C.
______________________________________Elemental analysis: C.sub.7 H.sub.8 N.sub.2 O.sub.3 Calculated Theory______________________________________C % 50.00 50.05H % 4.76 4.99N % 16.67 16.57______________________________________
Variation of the 1st phase
Preparation of 2-methyl-5-acetylamino-6-nitro phenol
0.3 mole (49.5 g) of 2-methyl-5-acetylamino phenol partially in solution is added with agitation to a mixture of 120 cc of acetic anhydride and 580 cc of sulfuric acid (d=1.83), the temperature being maintained between -5.degree. C. and +5.degree. C. The resulting reaction medium is cooled to -30.degree. C. after which there are slowly added with very good agitation, while maintaining the temperature between -33.degree. C. and -30.degree. C., 12.5 cc of nitric acid (d=1.52) in 18 cc of sulfuric acid. This addition lasts about 30 minutes.
The reaction mixture is then poured over 3 kg of crushed ice and the resulting precipitated nitrated derivative is filtered, washed with water and dried, yielding 45 g of crude nitrated derivative which contains a little 2-methyl-4-nitro-5-acetylamino phenol. 2nd phase: unchanged.
Example No. II
Preparation of 2-methyl-5-N-.beta.-hydroxyethyl amino-6-nitro phenol according to the following reaction scheme: ##STR14##
1st phase
Preparation of N-[(2-nitro-3-hydroxy-4-methyl)phenyl] .beta.-chloroethyl carbamate
0.05 mole (8.4 g) of 2-methyl-5-amino-6-nitro phenol is dissolved in 30 cc of dioxan. Thereafter 0.0365 mole (3.65 g) of calcium carbonate is added to the solution and the resulting mixture is heated to a temperature of about 70.degree. C., after which, little by little, while agitating, 0.073 mole (10.47 g) of .beta.-chloroethyl chloroformate is added thereto. The agitation is maintained for 50 minutes at about 70.degree. C. at which point the warm reaction mixture is filtered. After cooling and diluting the filtrate with water, 12.5 g of N-[(2-nitro-3-hydroxy-4-methyl)phenyl] .beta.-chloroethyl carbamate precipitate and are separated by filtration. This product melts at 82.degree. C.
2nd phase
Preparation of 2-methyl-5-N-.beta.-hydroxyethylamino-6-nitro phenol
0.0182 mole (5 g) of N-[(2-nitro-3-hydroxy-4-methyl)phenyl] .beta.-chloroethyl carbamate is dissolved in 15 cc of a 5N potassium hydroxide solution. The solution is heated for 30 minutes at 60.degree. C. after which 15 cc of water are added and the resulting mixture is cooled to 0.degree. C. There are then added 15 cc of 0.5N HCl and the expected product in the form of a crystalline precipitate is separated by filtration. After recrystallization in ethyl acetate and drying under a vacuum, the product obtained melts at 103.degree. C.
______________________________________Elemental analysis: C.sub.9 H.sub.12 O.sub.4 N.sub.2 Calculated Found______________________________________C % 50.94 50.63H % 5.66 5.71N % 13.21 13.39______________________________________
Example No. III
Preparation of 2-methyl-5-N-methylamino-6-nitro phenol ##STR15##
0.02 mole (3.36 g) of 2-methyl-5-amino-6-nitro phenol is dissolved in 22 cc of a normal sodium hydroxide solution at a temperature of about 40.degree. C. There is then added 0.022 mole (2.77 g) of methyl sulfate and the reaction mixture is maintained at 40.degree. C. for two hours. 22 cc of a normal NaOH solution and 0.022 mole of methyl sulfate are added and the resulting reaction mixture is left to rest overnight at ambient temperature. The next day the expected product which has precipitated in the form of a thick oil is decanted. This oil, washed with water to which are added 5 cc of acetone, soon crystallizes and the crystals are separated by filtration. The recovered crystals are completely soluble in a normal NaOH solution and are chromatographically pure. They do not contain any initial reactant and after recrystallization in a benzene-hexane mixture and drying under a vacuum, the said product exhibits a melting point of 140.degree. C.
______________________________________Elemental analysis: C.sub.8 H.sub.10 N.sub.2 O.sub.3 Calculated Theory______________________________________C % 52.84 53.03H % 5.53 5.46N % 15.38 15.50______________________________________
Example No. IV
Preparation of 2-chloro-5-amino-6-nitro phenol according to the following reaction scheme: ##STR16##
1st phase
Preparation of 2-chloro-5-acetylamino-6-nitro phenol
0.23 mole (43 g) of 2-chloro-5-acetylamino phenol is dissolved, with agitation, in 500 cc of sulfuric acid (d=1.83) at a temperature of about +5.degree. C. There are then added 15 cc of phosphoric acid and the resulting reaction medium is cooled to -30.degree. C. There are then slowly added, over a 35 minute period, while vigorously agitating, 9.7 cc of nitric acid (d=1.52) in 1.5 cc of sulfuric acid (d=1.83). The reaction mixture is then poured over 3 kgs of shaved ice to precipitate the desired product which is separated by filtration, washed with water and dried, yielding 47 g of product.
2nd phase
Preparation of 2-chloro-5-amino-6-nitro phenol
The crude nitrated product (47 g) obtained above is introduced into 235 cc of HCl (d=1.19) to which have been added 180 cc of acetic acid. The resulting mixture is heated to reflux for 11/2 hours to obtain the complete solution of the product.
The reaction mixture is then cooled to -5.degree. C. to precipitate 2-chloro-5-amino-6-nitro phenol hydrochloride, which is then separated by filtration, washed with 50 cc of a mixture of HCl and acetic acid at 0.degree. C. and then treated with 200 cc of water while agitating the whole for a few minutes to liberate the 2-chloro-5-amino-6-nitro phenol. This product is then separated by filtration and recrystallized in ethanol, yielding 28 g of chromatographically pure product melting at 184.degree. C.
______________________________________Elemental analysis: C.sub.6 H.sub.5 N.sub.2 O.sub.3 Cl Calculated Theory______________________________________C % 38.20 38.03H % 2.65 2.65N % 14.85 14.75Cl % 18.83 18.97, 18.82______________________________________
Example No. V
Preparation of 2-methyl-5-acetylamino-6-nitro phenol in the pure state ##STR17##
1st phase
Preparation of 2-methyl-5-acetylamino-6-nitro acetyl phenol ##STR18##
0.002 mole (3.36 g) of 2-methyl-5-amino-6-nitro phenol is dissolved in 15 cc of acetic anhydride. There are then added 2 drops of concentrated sulfuric acid and the reaction mixture is agitated for 2 hours. The temperature of the reaction mixture is then raised to 45.degree. C. and subsequently reduced progressively to ambient temperature, at which point the solution is poured over 50 g of ice water. When the acetic anhydride is destroyed, the diacetylated product which has precipitated in the form of crystals is filtered, washed with ice water and dried. The said product has a melting point of 172.degree. C.
2nd phase
Preparation of 2-methyl-5-acetylamino-6-nitro phenol
0.0119 mole (3 g) of the diacetylated product obtained above is added to 55 cc of a 0.4N NaOH solution. The product dissolves very rapidly, the deacetylation of the phenol function being nearly immediate.
To the NaOH solution there is added a sufficient amount of acetic acid to re-precipitate the 2-methyl-5-acetylamino-6-nitro phenol which is then separated by filtration, washed with water, recrystallized in ethyl alcohol (95.degree. titer) and dried under a vacuum. The product has a melting point of 147.degree. C.
______________________________________Elemental analysis: C.sub.9 H.sub.10 N.sub.2 O.sub.4 Calculated Theory______________________________________C % 51.43 51.35H % 4.76 4.78N % 13.33 13.50______________________________________
Example No. VI
Preparation of 2-methyl-5-carbethoxyamino-6-nitro phenol ##STR19##
0.1 mole (16.8 g) of 2-methyl-5-amino-6-nitro phenol is introduced into 30 cc of dioxan. To this mixture there is added 0.055 mole (5.5 g) of calcium carbonate. The resulting mixture is heated to reflux, while agitating, and to it there is added little by little, 0.11 mole (11.93 g) of ethyl chloroformate. Reflux is maintained for 1 hour, after which the boiling mixture is filtered to remove the mineral salts. After cooling the filtrate, the 2-methyl-5-carbethoxyamino-6-nitro phenol crystallizes and is then recrystallized in ethanol, separated and dried under a vacuum. This product has a melting point of 115.degree. C.
______________________________________Elemental analysis: C.sub.10 H.sub.12 N.sub.2 O.sub.5 Calculated Found______________________________________C % 50.00 49.97H % 5.04 4.70N % 11.66 11.61______________________________________
Example No. VII
Preparation of 2-methyl-5-N-piperidinoethylamino-6-nitro phenol according to the following reaction scheme: ##STR20##
1st phase
Preparation of N-[(2'-nitro-3'-hydroxy-4'-methyl)phenyl]-1,3-oxazolidine-2-one
0.0364 mole (10 g) of N-[(2'-nitro-3'-hydroxy-4'-methyl)phenyl]-.beta.-chloroethyl carbamate (obtained in the 1st phase of Example No. II) is introduced into 728 cc of a normal NaOH solution (0.0728 mole) cooled to about 0.degree. C. The resulting mixture is stirred for 25 minutes while the temperature thereof is maintained at about 10.degree. C. There is then added acetic acid in an amount sufficient to precipitate the expected product, which is filtered, washed with water, recrystallized in acetic acid and dried under a vacuum, yielding a product which melts at 153.degree. C.
______________________________________Elemental analysis: C.sub.10 H.sub.10 N.sub.2 O.sub.5 Calculated Found______________________________________C % 50.42 50.34H % 4.20 4.50N % 11.76 11.79______________________________________
2nd phase
Preparation of 2-methyl-5-N-.beta.-bromoethylamino-6-nitro phenol.
0.0252 mole (6 g) of N-[(2'-nitro-3'-hydroxy-4'-methyl)phenyl]-1,3 oxazolidin-2-one is introduced into 30 cc of 66% HBr. The resulting mixture is heated for 11/2 hours over a boiling water bath. Thereafter the reaction mixture is poured into 90 cc of ice water.
The desired product which precipitates, is filtered, washed with water, recrystallized in acetic acid and dried under a vacuum. This product melts at 129.degree. C.
______________________________________Elemental analysis: C.sub.9 H.sub.11 O.sub.3 N.sub.2 Br Calculated Theory______________________________________C % 39.27 39.15H % 4.00 4.30N % 10.18 10.12Br % 29.09 29.22______________________________________
3rd phase
Preparation of 2-methyl-5-N-piperidinoethylamino-6-nitro phenol
0.0073 mole of 2-methyl-5-N-.beta.-bromoethylamino-6-nitro phenol is introduced into 10 cc of piperidine. The resulting mixture is heated for 15 minutes at 110.degree. C., after which the solution is cooled to ambient temperature and then poured into 15 cc of water. After the addition of acetic acid, the desired product which precipitates is filtered, washed with water and dried under a vacuum. The product melts at 82.degree. C.
______________________________________Elemental analysis: C.sub.14 H.sub.21 N.sub.3 O.sub.3 Calculated Found______________________________________C % 60.22 60.36 60.22H % 7.53 7.79 7.80N % 15.05 15.34 15.28______________________________________
TABLE B
Table B indicates the characteristics of the "indo" or "benzoquinoneimine" compounds of formula (VII). The different columns of this Table have the following meanings:
(1) number of the Example for preparing the compound;
(2) designation of the compound of formula (VII);
(3) empirical formula
(4) melting point of the compound having the empirical formula in (3);
(5) to (12): values for each of the compounds, of the radicals designated respectively by R, R', R.sub.1, R.sub.2, R.sub.3, R.sub.4, Y.dbd.NR.sub.5 R.sub.6 and Y.dbd.OH. To facilitate the reading of this table, the value H is not represented for the radicals R, R', R.sub.1, R.sub.2, R.sub.3 and R.sub.4 ;
(13) to (16): these columns indicate respectively in weight percent the amounts of the elements C, H, N and Cl, corresponding on the one hand (1st line) to the calculated values and on the other hand (2nd line) to the results found by elemental analysis for the compounds whose empirical formula is indicated in column (3).
In Examples XVIII, the analytic determination has been carried out in the following manner:
Molecular mass calculated for C.sub.17 H.sub.19 N.sub.5 O.sub.4 : 357
Molecular mass found by potentiometric dosage in acetic acid by perchloric acid: 362.
TABLE B RELATIVE TO COMPOUNDS OF FORMULA VII ##STR21## (1)No.Example (2)of Formula (VII)Name of the Compound ( 3)FormulaEmpirical (4)(.degree.C.)Melting Point (5)R (6)R' (7)R.sub.1 R (8).sub.2 (9)R.sub.3 (10)R.sub.4 ##STR22## (12)Y = (13) C % (14)H % (15)N % (16)Cl % VIII N[(4'-hydroxy)phenyl] C.sub.13 H.sub.11 N.sub.3 O.sub.4 260 with CH.sub.3 OH 57.14 4.06 15.38 2-methyl-5-amino-6- decomposition 57.13 4.22 15.16 nitro-benzoquinoneimine IX N[(4'-hydroxy-2'- C.sub.13 H.sub.10 N.sub.3 O.sub.4 Cl 260 with CH.sub.3 Cl OH 50.74 3.27 13.66 11.52 chloro)phenyl]2- decomposition 50.86 3.47 13.66 11.36 methyl-5-amino-6- nitro-benzoquinoneimine X N[(4'-amino-2'- C.sub.15 H.sub.16 N.sub.4 O.sub.4 260 with CH.sub.3 OCH.sub.3 CH.sub.3 NH.sub.2 56.96 5.10 17.71 methoxy-5'-methyl)- decomposition 56.57 5.04 17.48 phenyl]2-methyl- 5-amino-6-nitro- benzoquinone imine XI N[(4'-amino-2',5'- C.sub.15 H.sub.16 N.sub.4 260 with CH.sub.3 CH.sub.3 CH.sub.3 NH.sub.2 56.60 5.66 17.61 dimethyl)phenyl] O.sub.3.H.sub.2 O decomposition 57.00 5.66 17.70 2-methyl-5-amino-6- nitro-ben zoquinoneimine XII N[(4'-amino-2',5' - C.sub.17 H.sub.18 N.sub.4 O.sub.4 235 CH.sub.3 COCH.sub.3 CH.sub.3 CH.sub.3 NH.sub.2 59.64 5.30 16.37 dimethyl)phenyl]2- decomposition 59.84 5.42 16.10 methyl-5-acet ylamino-6- nitro-benzoquinoneimine XIII N[(4'-amino-3'- C.sub.13 H.sub.11 ClN.sub.4 O.sub.3 260 with CH.sub.3 Cl NH.sub.2 50.91 3.71 18.27 11.56 chloro)phenyl]2- decomposition 50.83 3.90 18.05 11.38 methyl-5-amino-6- nitro-benzoquinoneimine XIV N[(4'-amino-2',5' - C.sub.18 H.sub.20 N.sub.4 O.sub.5 242 with CH.sub.3 CO.sub.2 C.sub.2 H.sub.5 CH.sub.3 CH.sub.3 NH.sub.2 58.06 5.41 15.05 dimethyl)phenyl]2 - decomposition 57.86 5.60 15.16 methyl-5-carbethoxy- amino-6-nitro- benzoquinoneimine XV N[(4'-methylamino-3'-chloro)phenyl]2-methyl-5-amino-6-nitro-benzoquin oneimine C.sub.14 H.sub.13 N.sub.4 O.sub.3 Cl 246 CH.sub.3 Cl ##STR23## 11.0510.76 XVI N[(4'-.beta.-hydroethyl-amino-3'-methoxy)-phenyl]2-methyl-5-amino-6- nitro-benzoquinoneimine C.sub.16 H.sub.18 N.sub.4 O.sub.5 163 CH.sub.3 OCH.sub.3 ##STR24## 55.4855.56 5.245.42 16.1815.81 XVII N[(4'-dimethylamino-2',6'-dimethyl)phenyl]-2-methyl-5-amino-6-nitro -benzoquinoneimine C.sub.17 H.sub.20 N.sub.4 O.sub.3 220 CH.sub.3 CH.sub.3 CH.sub.3 ##STR25## 62.1862.30 6.146.27 17.0617.00 XVIII N[(4'-ethylcarbamyl-methyl-amino)phenyl]-2-methyl-5-amino-6-nitro- benzoquinoneimine C.sub.17 H.sub.19 N.sub.5 O.sub.4 140 CH.sub.3 ##STR26## XIX N[(4'-ethyl,.beta.-morpholinoethyl)amino-2'-methyl)phenyl]2-chloro-5 -amino-6-nitro-benzoquinoneimine C.sub.21 H.sub.26 N.sub.5 O.sub.4 Cl.0.5 H.sub.2 O 130 Cl CH.sub.3 ##STR27## 55.1455.37 5.906.10 15.3114.96 7.76(7.64)(7.84)
TABLE C
Table C indicates the manner by which are prepared the indo compounds appearing in Table B. The different columns of this Table have the following meanings:
(1) number of the Example for the preparation of corresponding compounds carrying the same number in Table B;
(21) designation of the substituted aniline starting reactant having formula (II);
(22) designation of meta-amino phenol starting reactant having formula (I);
(23) molar ratio between the substituted aniline (22) and the meta-amino phenol (21). This ratio can be between 1:0.5 and 1:1.2, and preferably between 1:0.65 and 1:1.1;
(24) reaction medium. This medium is constituted by water, a lower alkanol such as ethanol, propanol or isopropanol, or even by a water-acetone mixture or a water-lower alkanol mixture, in a weight ratio of about 1:1;
(25) alkalinizing agent. The pH of the medium is alkalinized to a pH equal to or greater than 8 with the aid of a mineral or organic base, preferably ammonia, NaOH or an alkaline carbonate;
(26) oxidizing agent;
(27) molar ratio between the oxidizing agent (26) and the meta-amino phenol (22). This ratio varies generally between 1:1 to 8:1;
(28) temperature. The temperature varies between about -10.degree. C. to +30.degree. C. when as the aniline (formula II) there is used a paraphenylene diamine, the duration of the reaction being in the order of 30 minutes to 3 hours. When there is employed as the compound of formula (II) a paranitrosoaniline, the temperature of the reaction varies in the order of 40.degree. C. to the reflux temperature of the reaction mixture for a duration of about 4 hours;
(29) precipitating agent. At the end of the reaction, the "indo" compound is obtained, optionally, in the free form, as well as in the form of a precipitate by the addition of an acid such as acetic acid;
(30) Recrystallization agent. There is employed a solvent such as a lower alkyl acetate or an aqueous mixture such as a water-dimethyl formamide or water-acetone mixture.
TABLE C__________________________________________________________________________EXAMPLES OF PROCESS FOR PREPARING COMPOUNDS OF FORMULA VII__________________________________________________________________________Example Substituted Aniline Meta-amino phenol RatioNo. of Formula (II) of Formula (I) (22:21) Medium(1) (21) (22) (23) (24)__________________________________________________________________________VIII paraaminophenol 2-methyl-5-amino-6-nitro- 1:1 water phenol (compound I)IX 3-chloro-4-amino-phenol- 2-methyl-5-amino-6-nitro- 1:1 water hydrochloride phenol (compound I)X 2-methoxy-5-methyl-para- 2-methyl-5-amino-6-nitro- 1:1 (water-acetone) phenylene-diamene-di- phenol (compound I) hydrochlorideXI 2,5-dimethyl-paraphenylene- 2-methyl-5-amino-6-nitro- 1:1 (water-acetone) diamine-dihydrochloride phenol (compound I)XII 2,5-dimethyl-paraphenylene- 2-methyl-5-acetylamino- 1:1 water diamine-dihydrochloride 6-nitro-phenol (compound V)XIII chloro-paraphenylene- 2-methyl-5-amino-6-nitro- 1:1 (water- diamine hydrochloride phenol (compound I) isopropanol)XIV 2,5-dimethyl-2,5-para- 2-methyl-5-carbethoxy-6- 1:1 (water-acetone) phenylene-diamine-di- nitro-6-phenol hydrochloride (compound VI)XV 2-chloro-4-amino-methyl- 2-methyl-5-amino-6-nitro- 1:1 (water- aniline-sulfate phenol (compound I) iopropanol)XVI 2-methoxy-amino-N, .beta.- 2-methyl-5-amino-6-nitro- 1:1.1 (water-acetone) hydroxy-ethyl-aniline-sulfate phenol (compound I)XVII 3,5-dimethyl-4-amino- 2-methyl-5-amino-6-nitro- 1:1 (water- N,N--dimethyl-aniline- phenol (compound I) isopropanol) dihydrochlorideXVIII 4-amino-N,N--ethyl- 2-methyl-5-amino-6-nitro- 1:1 (water-acetone) carbamyl-methyl-aniline phenol (compound I)XIX 3-paranitroso- 2-chloro-5-amino-6-nitro- 1:1 (water-ethanol) methyl-N,N(ethyl, phenol (compound IV) morpholino-ethyl)- aniline-dihydrochloride__________________________________________________________________________ Release &Example Alkalizing Oxidizing Ratio Melting Point Precipitation RecrystallizationNo. Agent Agent (26:22) (.degree.C.) Agent Agent(1) (25) (26) (27) (28) (29) (30)__________________________________________________________________________VIII NH.sub.4 OH NH.sub.4 2:1 0 acetic acid persulfateIX NH.sub.4 OH potassium 4:1 0 " (water-dimethyl- ferricyanide formamide)X NH.sub.4 OH potassium 4:1 0 (water-dimethyl- ferricyanide formamide)XI NH.sub.4 OH NH.sub.4 2:1 0 (water-dimethyl- persulfate formamide)XII NH.sub.4 OH NH.sub.4 2:1 0 acetic acid (water-dimethyl- persulfate formamide)XIII NH.sub.4 OH potassium 4:1 0 (water-dimethyl- ferricyanide formamide)XIV NH.sub.4 OH NH.sub.4 2:1 0 acetic acid ethyl acetate persulfateXV NH.sub.4 OH potassium 4:1 0 (water-dimethyl- ferricyanide formamide)XVI NH.sub.4 OH H.sub.2 O.sub.2 8:1 ambient (water-dimethyl- formamide)XVII NH.sub.4 OH potassium 4:1 0 (water-dimethyl- ferricyanide formamide)XVIII NH.sub.4 OH H.sub.2 O.sub.2 8:1 ambient (water-dimethyl- formamide)XIX NaOH 50 (water-acetone)__________________________________________________________________________
To illustrate in a complete manner the process for preparing the "indo" compounds of Table C, there is reproduced below on the one hand Examples VIII, XII, XIV and XVI using as the initial reactant a paraphenylenediamine and on the other hand, Example XIX using as the initial reactant a paranitrosoaniline.
Example No. VIII
Preparation of N-[(4'-hydroxy)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine ##STR28##
0.01 mole (1.09 g) of para-amino-phenol and 0.01 mole (1.68 g) of 2-methyl-5-amino-6-nitro phenol are dissolved in 15 cc of ammonia (22.degree. Be) to which have been added 15 cc of water. To this resulting solution maintained at a temperature of about 0.degree. C., there is added, with agitation, 0.02 mole (4.6 g) of ammonium persulfate in 20 cc of water. The agitation is maintained for 30 minutes, after which the indophenol which has precipitated in the form of its ammonium salt is filtered. The thus recovered crude product is treated with water to which has been added acetic acid to obtain the indophenol in its free form. After filtering the indophenol, washing it with water and drying it under a vacuum, there is obtained a product which melts with decomposition above 260.degree. C.
______________________________________Elemental analysis: C.sub.13 H.sub.11 N.sub.3 O.sub.4 Calculated Theory______________________________________C % 57.14 57.13H % 4.06 4.22N % 15.38 15.16______________________________________
Example No. XVI
Preparation of N-[(4'-.beta.-hydroxyethylamino-3'-methoxy)phenyl]-2-methyl-5-amino-6-nitro benzoquinoneimine ##STR29##
0.01 mole (1.68 g) of 2-methyl-5-amino-6-nitro phenol and 0.011 mole (3.08 g) of 2-methoxy amino N,.beta.-hydroxyethylaniline are dissolved in 40 cc of a 50% hydroacetonic solution, and 20 cc of ammonia (22.degree. Be). There are then added 50 cc of H.sub.2 O.sub.2 (20 volumes), and the reaction mixture is permitted to stand for 3 hours at ambient temperature. The desired indoaniline which has precipitated is then filtered, washed with water, recrystallized in a mixture of dimethyl formamide and water and dried under a vacuum. The product melts at 163.degree. C.
______________________________________Elemental analysis: C.sub.16 H.sub.18 N.sub.4 O.sub.2 Calculated Found______________________________________C % 55.48 55.56H % 5.24 5.42N % 16.18 15.81______________________________________
Example No. XIX
Preparation of N-[(4'-ethyl, .beta.-morpholinoethylamino-2'-methyl)phenyl]-2-chloro-5-amino-6-nitro benzoquinoneimine ##STR30##
0.01 mole (1.88 g) of 2-chloro-5-amino-6-nitro phenol and 0.01 mole (3.50 g) of 3-paranitroso methyl-N,N-(ethyl, morpholinoethyl) aniline are introduced into 20 cc of a normal NaOH solution to which have been added 20 cc of ethanol. The resulting reaction mixture is maintained for 4 hours at 50.degree. C. The desired indoaniline which precipitates in crystalline form, is filtered, washed with a 50% hydroalcoholic solution, recrystallized initially in a hydroacetonic solution and then in a dimethylformamide-water mixture, and dried under a vacuum. The product obtained melts at 130.degree. C.
______________________________________Elemental analysis: C.sub.21 H.sub.26 N.sub.5 O.sub.4 Cl.0.5H.sub. 2 O Calculated Found______________________________________C % 55.14 55.37H % 5.90 6.10N % 15.31 14.96Cl % 7.76 7.64-7.84______________________________________
Example No. XII
Preparation of N-[(4'-amino-2',5'-dimethyl)phenyl]-2-methyl-5-acetylamino-6-nitro benzoquinoneimine. ##STR31##
0.02 mole (4.2 g) of 2-methyl-5-acetylamino-6-nitro phenol and 0.02 mole (4.18 g) of 2,5-dimethyl paraphenylenediamine dihydrochloride are dissolved in 15 cc of acetone, 30 cc of water and 25 cc of ammonia (22.degree. Be). To this solution, maintained at a temperature of about 0.degree. C., there is added, with agitation, 0.04 mole (9.2 g) of ammonium persulfate in 30 cc of water. Agitation of the resulting mixture is maintained for 30 minutes at which point there is added an amount of acetic acid necessary to precipitate the desired indoaniline, which is then filtered, washed with water, recrystallized in a dimethylformamide-water mixture and dried under a vacuum at 60.degree. C. The product melts with decomposition at 235.degree. C.
______________________________________Elemental analysis: C.sub.17 H.sub.18 N.sub.4 O.sub.4 Calculated Found______________________________________C % 59.64 59.84H % 5.30 5.42N % 16.37 16.10______________________________________
Example No. XIV
Preparation of N-[(4'-amino-2',5'-dimethyl)phenyl]-2-methyl-5-carbethoxyamino-6-nitro benzoquinoneimine. ##STR32##
0.01 mole (2.40 g) of 2-methyl-5-carbethoxyamino-6-nitro phenol is dissolved in 30 cc of a 50% hydroacetonic solution and 6 cc of ammonia (22.degree. Be). To the resulting solution, maintained at a temperature of about 0.degree. C., there are added, litle by little, simultaneously with the use of a double funnel, and with agitation, 0.01 mole (2.09 g) of 2,5-dimethyl paraphenylenediamine dihydrochloride in 25 cc of water, and 0.02 mole (4.6 g) of ammonium persulfate in 25 cc of water. As soon as the additions are completed, there are added 5 cc of acetic acid to the reaction mixture. The desired indoaniline which precipitates is filtered, washed with water and recrystallized in ethyl acetate. The product melts at 242.degree. C.
______________________________________Elemental analysis: C.sub.18 H.sub.20 N.sub.4 O.sub.5 Calculated Found______________________________________C % 58.06 57.86H % 5.41 5.60N % 15.05 15.16______________________________________
TABLE D
This Table describes the Examples illustrating the various dye compositions of the present invention containing at least one compound of formula I, used as a direct dye or as an oxidation dye, optionally in the presence of another coupler or another direct dye, in an appropriate carrier.
Compositions Nos. 1-7 correspond to the use of the compounds of the present invention as direct dyes.
Compositions Nos. 8-20 correspond to their use both as an oxidation dye and as a direct dye since there is a molar excess of coupler relative to the oxidation base.
Compositions Nos. 21-79 correspond to their use only as an oxidation dye, the molar quantity of the couplers being equal to or lower than that of the oxidation base.
Columns (31) to (48) of this Table have the following meanings:
(31) number of the Example of the composition;
(32), (33), (34) these columns indicate, respectively, the number of the coupler of the present invention (I to VII) with the designation of another optional coupler (C1 to C10); and for 100 g of the composition, the amount in moles per 100 grams and grams per 100 grams;
(35), (36), (37) these columns indicate respectively the designation of the oxidation base (B1 to B36) as well as for 100 g of the composition, the amount in mole per 100 g and in grams per 100 g;
(38), (39), (40) these columns indicate respectively another direct dye (CD1 to CD5); and for 100 g of the composition the amount in moles per 100 g and in grams per 100 g.
(41) ratio of coupler:oxidation base;
(42) to (47) these columns indicate the composition of the carrier with the designation and the weight in gram percent, respectively, for solvents (42) (43); surface active agents (44) (45); and other adjuvants (46) (47). When the solvent is water, it is not mentioned in this Table;
(48) pH of the composition. When no particular mention appears in the above pH values, it is obtained by the addition of an ammonia solution.
It is understood that for each of the compositions, the complement to 100 g is obtained by the addition of water.
TABLE D EXAMPLE OF DYE COMPOSITIONS CONTAINING AT LEAST: - EITHER A COMPOUND OF FORMULA (I) - OR A COMPOUND OF FORMULA (I) AND A COMPOUND OF FORMULA (II) Oxidation Base Compo- Coupler of Formula (I) of Formula (II) Coupler/ CARRIER sition and Other Couplers and Other Bases Other Direct Dyes Oxidation Solvents Surface Active Agents Other Adjuvants No. No. mole % Wt. g % Name mole % Wt. g % Name mole % Wt. g % Base Name Wt. g % N ame Wt. g % Name Wt. g % pH (31) (32) (33) (34) (35) (36) (37) (38) (39) (40) (41) (42) (43) (44) (45) (46) (47) (48) 1 I 0.2 ET 20 CMC 4 9 2 II 0.2 ET 25 CMC 3 10 3 IV 0.5 BG 5 AL 10.5 OE 5 9.6 4 IV 0.7 CD1 0.5 BG 25 CMC 3.75 9.5 CD2 1 CD3 0.5 5 III 0.1 BG 20 9.6 6 VI 2.0 AL 10.5 OE 20 9 7 V 1.0 NP 4OE 20 NP 9OE 20 9 8 I 0.006 1.008 B1 0.002 0.682 3 AL 10.5 OE 20 10.3 9 I 0.0148 2.5 B2 0.00113 0.3 2 PG 30 NP 4OE 7 10 C1 0.00199 0.3 B3 0.0078 1.5 NP 9OE 7 10 I 0.0015 0.25 B4 0.001 0.29 3/2 ET 20 CMC 4 10.8 11 I 0.0075 1.26 B5 0.005 1.035 3/2 ET 25 CARBOPOL 3.36 10.3 934 12 I 0.006 1.008 B6 0.003 0.813 2 ET 20 NP 4OE 16 9.5 NP 9OE 16 (TEA) 13 II 0.006 1.272 B7 0.003 0.585 2 LSA 5 10.5 14 II 0.012 2.544 B2 0.003 0.792 3/2 PG 25 DAGC 7.5 10 C2 0.004 0.612 B8 0.003 0.585 B9 0.005 0.545 15 II 0.010 2.12 B10 0.005 1.195 3 BG 30 AO2OE 2.8 10.3 C1 0.003 0.5 B9 0.010 1.09 AO4OE 4.2 C3 0.040 0.436 B11 0.0025 0.562 16 IV 0.0037 0.7 B12 0.0005 0.15 4/3 ET 25 DAGC 7.5 10 C4 0.0024 0.4 B13 0.005 0.17 B14 0.0036 0.5 17 IV 0.006 1.13 B13 0.0015 0.49 4 AL 10.5 OE 5 10.2 ASA 15 18 III 0.004 0.728 B15 0.001 0.211 4 PG 7.4 AO2OE 2.8 10.8 AO4OE 4.2 19 I 0.005 0.84 B8 0.001 0.195 5 PG 40 CARBOPOL 2.7 10 934 20 VII 0.84 B17 0.317 LSS 19 20 Trilon B 0.2 10 BS 1.0 21 C5 0.0025 0.38 B18 0.0025 0.49 1 ET 40 10.5 22 II 0.006 0.636 B19 0.003 0.735 2 PG 20 CARBOPOL 3.6 10.5 934 23 I 0.003 0.504 B9 0.003 0.327 1 LSS 19 20 EDTA 0.2 10.5 24 I 0.001 0.168 B8 0.001 0.195 1 LSS 19 20 EDTA 0.2 10.5 25 I 0.004 0.672 B8 0.001 0.195 1 LSS 19 20 EDTA 0.2 10.5 B9 0.003 0.327 BS 1.0 26 I 0.004 0.672 B9 0.001 0.109 1 LSS 19 20 EDTA 0.2 10.5 B8 0.003 0.585 BS 10 27 I 0.004 0.672 B20 0.001 0.209 1 LSS 19 20 EDTA 0.2 10.5 B9 0.003 0.327 BS 1.0 28 I 0.004 0.672 B20 0.003 0.627 1 LSS 19 20 EDTA 0.2 10.5 B9 0.001 0.109 BS 1.0 29 I 0.0025 0.42 B6 0.0025 0.68 1 LSN 20 Trilon B 0.2 10.3 BS 1.0 30 I 0.0044 0.75 B21 0.0012 0.18 0.95 LSS 19 20 Trilon B 0.2 10.7 C1 0.0016 0.25 B9 0.0046 0.50 BS 1.0 B22 0.0006 0.125 31 I 0.004 0.672 B10 0.003 0.717 1 LSS 19 20 EDTA 0.2 10.4 B9 0.001 0.109 BS 1.0 32 I 0.002 0.336 B1 0.002 0.682 1 AL 10.5 OE 20 10.4 33 I 0.003 0.5 B11 0.009 0.2 1 ASA 15 10.2 C1 0.00165 0.25 B9 0.0046 0.5 AL 10.5 OE 5 34 I 0.0045 0.75 B11 0.0006 0.135 1 LSS 19 20 Trilon B 0.2 10.8 C1 0.00165 0.25 B21 0.00126 0.18 BS 1.0 B9 0.0046 0.5 35 I 0.0059 1 B8 0.003 0.6 1 BG 25 CARBOPOL 3.5 10.6 C6 0.0045 0.5 B37 0.00155 0.5 934 C3 0.0045 0.5 B9 0.011 1.2 36 I 0.00357 0.6 B15 0.00059 0.126 1 BG 5 AL 10.5 OE 5 10.7 C1 0.00165 0.25 B9 0.00458 0.5 37 I 0.001 0.168 B11 0.001 0.225 1 LSS 19 20 EDTA 0.2 10.3 BS 1.0 38 I 0.004 0.672 B11 0.001 0.225 1 LSS 19 20 EDTA 0.2 10.4 B9 0.003 0.327 BS 1.0 39 I 0.004 0.672 B7 0.001 0.195 1 LSS 19 20 EDTA 0.2 10.4 B9 0.003 0.327 BS 1.0 40 I 0.004 0.672 B23 0.001 0.225 1 LSS 19 20 EDTA 0.2 10.4 B9 0.003 0.327 BS 1.0 41 I 0.00178 0.3 B8 0.0102 2 PG 35 DAGC 6.5 8.8 C1 0.00198 0.3 B15 0.0014 0.3 2 C7 0.00365 0.5 B24 0.0008 0.2 C2 0.00651 1 B9 0.0137 1.5 1/2 42 I 0.004 0.672 B21 0.003 0.4275 1 LSS 19 20 Trilon B 0.2 10.8 B9 0.001 0.109 BS 1.0 43 I 0.0089 1.5 B25 0.00078 0.2 0.8 BG 25 NP 4OE 15 8 B26 0.00126 0.25 NP 9OE 15 B9 0.0091 1 44 I 0.004 0.672 B27 0.004 0.78 1 LSA 5 9 45 I 0.006 1.008 B28 0.006 2.136 1 BG 5 AL 10.5 OE 5 8.5 46 I 0.005 0.84 B29 0.005 1.22 1 ET 30 DAGC 7 6 (AL) 47 I 0.00089 0.15 B21 0.0025 0.36 PG 30 NP 4OE 17 10 C1 0.00265 0.4 B11 0.0012 0.27 NP 9OE 17 C2 0.00287 0.44 B9 0.009 1 1/2 48 I 0.0015 0.25 B30 0.003 0.84 1/2 BG 5 AL 10.5 OE 5 9.6 49 I 0.00357 0.6 B10 0.00418 1 CD4 0.15 0.85 PG 40 DAGC 6 8.5 CD5 0.5 50 I 0.00029 0.05 B8 0.00029 0.057 1 ET 5 10 51 I 0.001 0.168 B2 0.001 0.264 1 LSS 19 20 EDTA 0.2 10.5 BS 1.0 52 I 0.004 0.672 B2 0.001 0.264 1 LSS 19 20 EDTA 0.2 10.5 B9 0.003 0.327 BS 1.0 53 I 0.004 0.672 B31 0.004 1.3 1 PG 7.4 AO2OE 3.7 8 AO4OE 5.5 (TEA) 54 I 0.002 0.336 B32 0.002 0.528 1 EMDG 10 10.5 55 I 0.0015 0.252 B18 0.0015 0.289 1 ET 25 CARBOPOL 3.35 8.5 934 56 I 0.0089 1.5 B21 0.0025 0.36 0.9 LSS 19 20 EDTA 0.2 10.5 C1 0.00265 0.4 B9 0.009 1 BS 1.0 B11 0.0012 0.27 57 I 0.0089 1.5 B21 0.0025 0.36 0.9 LSS 19 20 EDTA 0.2 10.5 C1 0.00265 0.4 B9 0.009 1 BS 1.0 B8 0.0012 0.234 58 I 0.0000119 0.002 B8 0.0000119 0.0023 1 ET 20 10 59 II 0.003 0.636 B7 0.003 0.585 1 LSA 5 10.5 60 II 0.001 0.212 B8 0.001 0.195 1 LSS 19 20 Trilon B 0.2 10.6 BS 1.0 61 II 0.01 2.12 B33 0.01 2.58 1 EG 20 NP 4OE 8 10.5 NP 9OE 8 62 II 0.005 1.06 B9 0.005 0.545 1 PG 25 CMC 3.75 9.5 C3 0.005 0.545 B21 0.003 0.428 B10 0.006 1.43 63 IV 0.003 0.565 B9 0.003 0.327 1 LSS 19 20 EDTA 0.2 10.5 BS 1.0 64 IV 0.004 0.753 B8 0.002 0.39 1 LSS 19 20 EDTA 0.2 10.5 B9 0.002 0.218 BS 1.0 65 IV 0.004 0.753 B11 0.001 0.225 1 LSS 19 20 EDTA 0.2 10.5 B9 0.003 0.327 BS 1.0 66 IV 0.006 1.13 B24 0.006 1.5 1 CMC 4 7 (TEA) 67 IV 0.0025 0.47 B6 0.0025 0.68 1 LSN 20 Trilon B 0.2 10.5 BS 1.0 68 IV 0.00796 1.5 B11 0.00178 0.4 1 PG 25 DAGC 7.5 10.2 C8 0.00164 0.3 B19 0.00204 0.5 B34 0.00588 1.2 69 IV 0.0015 0.283 B13 0.0015 0.491 1 ASA 15 10.2 AL 10.5 OE 70 IV 0.00795 1.5 B18 0.002 0.4 1/2 BG 30 AO2OE 2.8 9 C4 0.0048 0.8 B5 0.0048 1.0 AO4OE 4.2 B35 0.00549 1.0 B9 0.0137 1.5 71 IV 0.00265 0.5 B36 0.5 PG 30 CARBOPOL 3.6 8.8 C9 0.25 B9 1.4 934 C6 0.009 1 B33 0.8 C10 0.4 B30 0.3 72 III 0.001 0.182 B15 0.001 0.211 1 PG 7.4 AO2OE 2.8 10.7 AO4OE 4.2 73 III 0.005 0.91 B9 0.006 0.654 CD1 0.2 0.8 PG NP 4OE 17.5 10 C3 0.005 0.545 B8 0.006 1.17 NP 9OE 17.5 74 III 0.003 0.546 B22 0.002 0.418 CD4 0.1 0.85 BG 30 LSA 7 10.2 C2 0.003 0.46 B9 0.005 0.545 75 V 0.005 1.05 B2 0.005 1.32 1 PG 20 AO2OE 3.2 10 AO4OE 4.8 76 VI 0.003 0.72 B7 0.003 0.585 1 BG 5 AL 10.5 OE 5 77 V 0.004 0.84 B9 0.004 0.436 1 BG 20 DAGC 8 10.5 78 I 0.001 0.168 B8 0.005 0.975 1/5 PG 40 CARBOPOL 2.7 9.5 934 79 I 0.002 0.336 B15 0.001 0.211 2 ET 20 LSS 19 10 10.5 LEGEND OF TABLE D' Couplers of Column (32) Other Than the Couplers of Formula (I) C1 = 6-hydroxy-phenomorpholine C6 = resorcinol C2 = 3-N, .beta.-hydroxy-ethylamino-phenol C7 = 2,6-dimethyl-3-amino-phenol C3 = Meta-aminophenol C8 = 2-methoxy-5-N, .beta.-hydroxyethylamino-phenol C4 = 2-methyl-5-N, .beta.-hydroxyethylamino-phenol C9 = 2,4-diamino-anisole-dihydrochloride C5 = 2-nitro-3-amino-phenol C10 = 2-methyl-5-acetylamino-phenol Bases in Column (35) B1 = 2-methyl-4-amino-N--mesylaminoethylaniline-sulfate B20 = N,N--dimethylparaphenylenediamine-dihydrochloride B2 = 3-methoxy-4-amino-N,N--dimethylaniline-sulfate B21 = Chloroparaphenylenediamine B3 = 2,6-dimethyl-4-amino-phenol B22 = 3-methyl-4-amino-N,N--methylaniline-dihydrochloride B4 = 4-amino-N--acetylamino-ethylaniline-sulfate B32 = 3-methoxy-4-amino-N--methylaniline-dihydrochloride B5 = 3-methyl-4-amino-N,N--ethylcarbamylmethylaniline B24 = 4-amino-N, .beta.-hydroxyethylaniline-sulfate B6 = 3-methyl-4-amino-N,N--ethyl, mesylaminoethylaniline B25 = 2-chloro-4-amino-N--methylaniline-sulfate B7 = N--methylparaphenylenediamine-dihydrochloride B26 = 2-methyl-4-amino-N--methylaniline-sulfate B8 = paratoluylenediamine-dihydrochloride B27 = 2-methoxy-4-amino-carbamylmethylaniline B9 = para-amino-phenol B28 = 4-amino-N,N--ethyl, .beta.-piperidino-ethylaniline-trihydrochloride B10 = 2,6-dimethyl-3-methoxy-paraphenylenediamine-dihydrochloride B29 = 4-amino-N,N--ethyl, .beta.-sulfo-ethylaniline B11 = 2-methyl-5-methoxy-paraphenylenediamine-dihydrochloride B30 = 3-methoxy-4-amino-N, .beta.-hydroxyethylaniline-sulfate B12 = 2-methoxy-4-amino-N, .beta.-hydroxyethylaniline-sulfate B31 = 2-chloro-4-amino-N, acetylaminoethylaniline-sulfate B13 = 4-amino-N--mesylaminoethylaniline-sulfate B32 = 2-methyl-4-amino-N, .beta.-hydroxyethylaniline-sulfate B14 = 2,5-dimethyl-4-amino-phenol B33 = 3-methyl-4-amino-N,N--ethyl, .beta.-sulfoethylaniline B15 = methoxyparaphenylenediamine-dihydrochloride B34 = 3-methyl-4-amino-phenol-hydrobromide B17 = methoxyparaphenylenediamine-dihydrochloride B35 = 2,5-diamino-pyridine-dihydrochloride B18 = 4-amino-N,N--ethyl, carbamylmethylaniline B36 = 2,4-dihydroxy-5,6-diamino-pyrimidine-sulfate B19 = 4-amino-N,N--di-.beta.-hydroxyethylaniline-sulfate B37 = 4-amino-2-methoxy-N--acetylaminoethylaniline-sulfate Other Direct Dyes of Column (38) CD1 = 4-nitro-5-N--methylamino)phenyl carboxymethylether CD4 = nitro-metaphenylenediamine CD2 = 3-nitro-4-N'--methylamino-N,N methyl, .beta.-hydroxyethylaniline CD5 = 3-methoxy-4,6-diamino-4'-hydroxy-diphenylamine-trihydrochloride CD3 = tetra-amino-anthraquinone Carriers Corresponding to the Compounds in Columns (42) (44) (46) and pH Adjustment Agent (48) ET = ethanol AO 2OE = oleyl alcohol oxyethylenated with 2 moles of ethyleneoxide CMC = carboxymethylcellulose AO 4OE = oleyl alcohol oxyethylenated with 4 moles of ethyleneoxide EG = ethylglycol ASA = ammonium alkyl sulfate wherein the alkyl moiety is C.sub.12 -C.sub.14 (70% C.sub.12 -30% C.sub.14) AL 10.5 OE = lauryl alcohol oxyethylenated with 10.5 LSS 19 = mixture of 19% lauryl alcohol oxyethylenated with 2 moles moles of ethyleneoxide of ethyleneoxide and 81% of the sodium sulfate salt of this same oxyethylenated alcohol NP 4OE = nonylphenol oxyethylenated with 4 moles EDTA = Trilon B = ethylenediamine tetracetic acid of ethyleneoxide NP 9OE = nonylphenol oxyethylenated with 9 moles BS = 40 wt. % solution of sodium disulfate of ethyleneoxide PG = propyleneglycol BG = butylglycol CARBOPOL 934 = polymer of acrylic acid, having a molecular EMDG = monomethylether of diethyleneglycol weight between 2 and 3 million LSA = ammonium lauryl sulfate EG = ethylglycol TEA = triethanolamine LSN = sodium lauryl sulfate DAGC = diethanolamides of the fatty acids of copra AL =
TABLE E
This Table describes some Examples illustrating the process for preparing and using dyes T1 to T78 carried out with the aid of compositions 1 to 79 of Table D.
Columns (51) to (58) have the following meanings:
(51) number of the Example of dyeing;
(31) number of the Example of the composition used for the dyeing;
(52) quantity in grams of the composition;
(53) name of the oxidizing agent;
(54) quantity in grams of the oxidizing agent used;
(55) nature of the hair treated;
(56) temperature of application in .degree.C.;
(57) duration of the application in minutes;
(58) color obtained.
Remark: One can dye in accordance with the present invention naturally white hair, completely or partially bleached hair, or even natural hair containing no white hair.
TABLE E__________________________________________________________________________EXAMPLES OF PROCESS FOR DYEING HAIR WITH THE COMPOSITIONS OF TABLE DComposition ApplicationExample Quantity Oxidizing Agent Added Hair Temperature ContactDye No. No. (g.) Name Amount Treated (.degree.C.) Time (mn.) Coloration(51) (31) (52) (53) (54) (55) (56) (57) (58)__________________________________________________________________________T1 1 D (J) A 20 Light salmonT2 2 D A 20 Rose eglantineT3 3 D 30 20 Very luminous salmon pinkT4 4 D A 5 Silver grey with light mauve glintsT5 5 D A 20 Pink champagneT6 6 D 35 20 Pink apricotT7 7 D 30 20 Very luminous topazT8 8 100 H.sub.2 O.sub.2 (20 vol.) 40 N A 20 Silvery grey-violetT9 9 100 H.sub.2 O.sub.2 (20 vol.) 75 N 30 15 Ash beigeT10 10 100 " 60 N 20 25 Silver grey with mauve glintsT11 11 100 " 100 N A 25 Very dark slight violet grey blueT12 12 100 " 100 N 20 10 Silvery eucalyptus greenT13 13 100 H.sub.2 O.sub.2 (20 vol.) 100 D A 20 Dark violet blueT14 14 100 " 70 N A 25 Very dark grey with light violet glintsT15 15 100 " 70 N A 20 Tin greyT16 16 100 " 50 N A 20 Light ash chestnutT17 17 100 " 50 N A 20 Metallic grey with blue glintsT18 18 100 " 100 N A 25 Very luminous silver grey with light violet glintsT19 19 100 " 100 N A 20 Silvery grey violetT20 20 100 " 100 N A 20 Silver blue greyT21 21 100 H.sub.2 O.sub.2 (20 vol.) 100 D A 20 Lightly violet dark blue greyT22 22 100 " 100 N A 20 Deep royal blueT23 23 100 H.sub.2 O.sub.2 (20 vol.) 100 N A 20 Copper redT24 24 100 " 100 N A 20 Silvery mauve blueT25 25 100 " 100 N A 15 Slight violet reddish chestnutT26 26 100 " 100 N 30 25 Dark violetT27 27 100 " 100 N A 10 Deep mahoganyT28 28 100 " 100 N 25 20 Night blueT29 29 100 H.sub.2 O.sub.2 (20 vol.) 100 N A 20 Light silvery turquoise blueT30 30 100 " 100 N 35 25 HazelT31 31 100 " 100 N A 20 Slightly violet deep beigeT32 32 100 " 40 N A 20 Steel blue greyT33 33 100 " 100 N 35 20 Smoke greyT34 34 100 " 100 N 30 25 Extremely dark greyT35 35 100 " 100 N A 20 Chestnut with very light eggplant glintsT36 36 100 H.sub.2 O.sub.2 (20 vol.) 100 N 25 20 Ash blondeT37 37 100 " 100 N A 25 Deep turquoise blueT38 38 100 " 100 N 25 20 Royal blueT39 39 100 " 100 N A 30 Dark violet blue with metallic glintsT40 40 100 " 100 N 25 20 Deep French blueT41 41 100 " 50 N 30 25 Tin grey with pink glintsT42 42 100 " 100 N A 25 Deep rosewoodT43 43 100 " 35 N 35 25 Light golden chestnutT44 44 100 " 75 N A 20 Grey blueT45 45 100 " 80 N A 20 Very strong blue violetT46 46 100 Urea peroxide 100 N A 20 Metallic grey (10% in water)T47 47 100 H.sub.2 O.sub.2 (20 vol.) 80 N 30 25 Deep ash beigeT48 48 100 " 40 N A 20 Very deep French blueT49 49 100 " 80 N A 25 Light copper pinkT50 50 100 H.sub.2 O.sub.2 (20 vol.) 20 D A 15 Silvery glycineT51 51 100 " 100 N A 20 Very deep turquoise blueT52 52 100 " 100 N A 20 Smoke greyT53 53 100 " 45 N A 20 Pearly pink beigeT54 54 100 Urea peroxide 100 N A 15 Silvery lavender (10 wt. % soln.)T55 55 100 H.sub.2 O.sub.2 (20 vol.) 100 N 35 20 Silvery light mauve greyT56 56 100 " 100 N A 20 Anthracite greyT57 57 100 " 100 N A 20 ChestnutT58 58 100 " 2 D A 25 Pearly very light greyT59 59 100 " 100 D A 20 Dark French blueT60 60 100 " 100 N A 20 Very silvery greyT61 61 100 " 100 N A 10 Very pearly light pink grey beigeT62 62 100 " 30 N 30 20 Deep ash grey with light pink glintsT63 63 100 " 100 N A 20 RosewoodT64 64 100 H.sub.2 O.sub.2 (20 vol.) 100 N A 20 Dark greyT65 65 100 " 100 N A 20 Dark petroleum blueT66 66 100 " 50 N A 15 Silvery eucalyptus greenT67 67 100 " 100 N A 20 Silvery almond greenT68 68 100 " 100 D A 10 Duck blueT69 69 100 " 50 N A 20 Petroleum blueT70 70 100 " 80 N 30 25 FawnT71 71 100 " 100 N 30 25 Dark grey with mordore glintsT72 72 100 " 100 N A 25 Light grey beigeT73 73 100 " 50 N 35 25 Hazel with light pink glintsT74 74 100 " 25 N A 20 Bronze greenT75 75 100 NH.sub.4 Persulfate 50 N 35 30 Eucalyptus green (2.28% in H.sub.2 O)T76 76 100 NH.sub.4 Persulfate 30 D 35 5 Light bluish silver grey (2.28% in H.sub.2 O)T77 77 100 NH.sub.4 Persulfate 30 D A 10 Golden honey (2.28% in H.sub.2 O)T78 78 100 H.sub.2 O.sub.2 (20 vol.) 100 N A 20 Beige greyT79 79 200 " 50 D A 15 + 3 Lavender blue__________________________________________________________________________ LEGEND OF TABLE E H.sub.2 O.sub.2 (20 vol.) = aqueous solution containing 6 wt. % H.sub.2 O.sub.2 D = bleached hair; N = 95% naturally white hair; A = ambient temperature
To facilitate a good understanding of Tables D and E, the following Examples are indicated hereafter in a complete fashion. These Examples are designated only by their number in Table D, but they include each in the last paragraph, the Example of the corresponding dyeing, i.e. they describe first the composition in column (31) of Table D and then the process of dyeing in accordance with the other columns of Table E.
EXAMPLES OF COMPOSITION AND PROCESS OF DYEING
Example No. 2
______________________________________Use of compound II as a direct dyeThe following dye composition is prepared:Dye of Example II 0.2 gEthyl alcohol (96.degree. titer) 25 gCarboxymethylcellulose 3 gAmmonia (22.degree. Be) q.s.p. pH = 10Water, q.s.p 100 g______________________________________
This dye composition is applied for 20 minutes at ambient temperature to bleached hair and imparts thereto, after rinsing and shampooing, a eglantine pink coloration.
Example No. 4
The following dye composition containing only direct dyes is prepared.
______________________________________Dye of Example No. IV 0.7 g(4-nitro-5-N--methylamino)phenyl 0.5 gcarboxymethyl ether3-nitro-4-N'--methylamino-N,N-- 1 gmethyl, .beta.-hydroxyethylanilineTetraamino anthraquinone 0.5 gButyl glycol 25 gCarboxymethylcellulose 3.75 gAmmonia (22.degree. Be) q.s.p. pH = 9.5Water, q.s.p. 100 g______________________________________
This dye composition when applied for 25 minutes at ambient temperature to 95% naturally white hair imparts thereto after rinsing and shampooing a silver grey color having light mauve glints.
Example No. 6
The following dye composition is prepared:
______________________________________Dye of Example No. VI 2 gLauryl alcohol oxyethylenated 20 gwith 10.5 moles of ethyleneoxideWater, q.s.p. 100 gAmmonia (22.degree. Be) q.s.p. pH = 9______________________________________
This dye composition when applied for 20 minutes at 35.degree. C. to bleached hair, imparts thereto after rinsing and shampooing a pink apricot color.
Example No. 9
The following dye composition is prepared wherein Compound No. I plays both the role of the direct dye and of the coupler:
______________________________________Dye of Example No. 1 2.5 g6-hydroxyphenomorpholine 0.3 g3-methoxy-4-amino N,N--dimethyl- 0.3 ganiline sulfate2,6-dimethyl-4-amino phenol 1.5 gmonohydrate hydrochloridePropylene glycol 30 gNonyl phenol oxyethylenated with 7 g4 moles of ethylene oxideNonyl phenol oxyethylenated with 7 g9 moles of ethylene oxideWater, q.s.p. 100 gAmmonia (22.degree. Be), q.s.p. pH = 10______________________________________
At the moment of use, 75 g of H.sub.2 O.sub.2 (20 volumes) are added thereto. This resulting mixture when applied to 95% naturally white hair for 15 minutes at 30.degree. C. imparts thereto after rinsing and shampooing an ash beige coloration.
Example No. 20
The following dye composition is prepared:
______________________________________Dye of Example No. VII 0.84 gMethoxy paraphenylenediamine 0.317 gdihydrochlorideSodium lauryl sulfate with 19% of 20 gthe alcohol being oxyethylenated. - Trilon B 0.2 gAmmonia (22.degree. Be) 10 gSodium bisulfite (40%) 1 gWater, q.s.p. 100 g______________________________________
At the moment of use, an equal volume of H.sub.2 O.sub.2 (20 volumes) is added thereto. The resulting mixture when applied for 20 minutes at ambient temperature to 95% naturally white hair imparts thereto, after rinsing and shampooing, a silvery blue grey coloration.
Example No. 73
The following dye composition is prepared wherein the molar ratio of coupler:base is lower than 1.
______________________________________Dye of Example No. III 0.91 g(4-nitro-5-N--methylamino)phenyl 0.2 gcarboxymethyl etherParatoluylenediamine 1.17 gdihydrochlorideParaamino phenol 0.654 gMetaamino phenol 0.545 gPropylene glycol 25 gNonyl phenol oxyethylenated with 17.5 g4 moles of ethylene oxideNonyl phenol oxyethylenated with 17.5 g9 moles of ethylene oxideWater, q.s.p. 100 gAmmonia (22 Be) q.s.p. pH = 10______________________________________
At the moment of use, 50 cc of H.sub.2 O.sub.2 (20 volumes) are added thereto. This resulting dye composition when applied for 25 minutes at 35.degree. C. to 95% naturally white hair imparts thereto after rinsing and shampooing a chestnut coloration with light pink glints.
Example No. 77
The following dye composition is prepared wherein the molar ratio of coupler:base is equal to 1.
______________________________________Dye of Example No. V 0.84 gParaamino phenol 0.436 gButyl glycol 20 gDiethanolamides of the fatty 8 gacids of copraWater, q.s.p. 100 gAmmonia (22 Be) 7 gFinal pH - 10.5______________________________________
Before use 30 g of an aqueous solution of ammonium persulfate at 2.28 g percent by weight are added thereto.
This resulting dye composition is applied to bleached hair for 10 minutes at ambient temperature. After rinsing and shampooing, it imparts thereto a golden honey coloration.
Example No. 79
The following dye mixture (a) is prepared initially:
______________________________________Coupler of Example 1 (0.002 mole) 0.336 gEthanol 40 gWater, q.s.p. 100 g______________________________________
This mixture is applied for 15 minutes at ambient temperature to 95% to naturally white hair, or to previously bleached hair. The hair is then rinsed.
The following mixture (b) is prepared:
______________________________________Methoxy paraphenylenediamine 0.211 gdihydrochloride (0.001 mole)Sodium lauryl sulfate with 20 g19% of the starting alcoholbeing oxyethylenatedTrilon B 0.2 gSodium bisulfite (40%) 1 ccAmmonia (22.degree. Be) 10 ccWater, q.s.p. 100 g______________________________________
This composition has a pH of 10.5. At the moment of use, there is added to this composition a solution (c) containing 50 g of H.sub.2 O.sub.2 (20 volumes) and the resulting mixture is applied at ambient temperature for 3 minutes to hair having been treated with dye mixture (a). The hair is then rinsed, shampooed, rinsed again and dried.
On previously bleached hair, there is obtained a lavender blue coloration; on naturally white hair, a blue grey coloration.
In each of the aforementioned examples, there can also be applied to the hair, successively, a type (a) solution containing at least one coupler of formula I, optionally in the presence of another coupler, and a type (b) solution containing at least one oxidation base of formula II or a heterocyclic oxidation base. The solutions (a) and (b) can be applied in either order. Further a type (c) solution can be applied either separately after the solutions (a) and (b) or in admixture, completely or partially, with the second of solutions (a) or (b) which is applied, with the proviso that in the case where solution (b) contains an oxidation base which itself develops a color in the presence of an oxidizing agent, solution (a) is applied first.
One can also, at the moment of use, mix the said type (a), (b) and (c) solutions. Further, solution (c) can be previously admixed, completely or partially, to solutions (a) and (b).
TABLE F
This Table which describes representative hair setting lotion compositions and their application includes columns having the following meanings:
(61) the number of the Example of the lotion;
(62), (63) number of the compound used as the dye, and quantity in grams per 100 grams of lotion;
(64), (65), (66), (67) these columns, relating to the polymers used, indicate respectively the designation of the polymer, its molecular weight, its viscosity and the weight in grams per 100 grams of lotion;
(68), (69) these columns indicate, respectively, the designation of the dye and its weight in grams per 100 grams of solution;
(70) indicates the pH. When no mention is indicated relative to the above pH value, it is obtained by the addition of an ammonia solution;
(71) nature of the hair treated;
(72) color obtained.
TABLE F__________________________________________________________________________EXAMPLES OF HAIR SETTING LOTIONSDye POLYMERLotion Wt. Wt. Solvents HairNo. No. g % Name M.W. Cps g % Name g % pH Treated Coloration(61) (62) (63) (64) (65) (66) (67) (68) (69) (70) (71) (72)__________________________________________________________________________L1 IX 0.5 Polymer of 80.5% vinyl acetate, 2.5 ET 50 8.5 D Very lively 15% allyl stearate, 4.5% orange pink allyloxyacetic acidL2 VIII 0.45 Polyvinylpyrrolidone sold 40,000 2 IP 35 8 D Coral under the name "K 30" by General Aniline & Film CorporationL3 XVI 0.35 K 30 40,000 2 IP 25 7.5 D Deep pearly TEA turquoise blueL4 XIII 0.1 Copolymer of 60% polyvinyl- 3.3 2 IP 35 10 D Pearly grey pyrrolidone, 40% vinyl acetate to 4 sold under the name "PVP/VA S630" by General Aniline & Film CorporationL5 X 1.0 Copolymer of 90% vinyl acetate 45,000 1 ET 36 9 D Deep blue grey and 10% crotonic acid to TEA 50,000L6 XV 0.3 Copolymer of 90% vinyl acetate 45,000 2 ET 50 8.5 D Beige shaded and 10% crotonic acid to violet pink 50,000L7 XVIII 0.2 Quaternized copolymer of 100,000 2 IP 20 5.5 D Silvery mauve polyvinylpyrrolidone in a AA 50% solution in alcohol sold under the name "GAFQUAT 734" by General Aniline FRANCEL8 XII 0.05 K 30 40,000 2 IP 25 7.5 D Emerald green TEAL9 XIX 0.65 Polymer of 30% polyvinylpyrroli- 160,000 2 ET 40 8 D Very strong done, 70% vinyl acetate sold under blue the name "PVP/VA E 335" by General Aniline & Film CorporationL10 XVII 0.2 Terpolymer of 20.15% methyl 8-12* 2.5 ET 30 8 D Pearly emerald methacrylate, 22.35% stearyl green methacrylate, 57.50% dimethyl- aminoethyl methacrylate completely quaternized with dimethyl sulfateL11 XI 0.1 Polymer of 70% polyvinylpyrroli- 40,000 3 ET 25 10 D Silvery light done, 30% vinyl acetate sold under blue the name "PVP/VA E 735" by General Aniline & Film CorporationL12 XIV 0.045 Butyl Monoester of the copolymer 50,000 1 ET 45 6.8 D Pearly pastel of maleic anhydride methylvinyl- TEA blue ether sold under the name "GANTREZ ES 435" by General Aniline & Film CorporationL13 IX 0.2 PVP/VA E 335 160,000 2 ET 40 9 D Rosewood XVII 0.2 CD6 0.05__________________________________________________________________________ LEGEND OF TABLE F ET = ethanol; CD6 = N--[(4amino)phenyl]2methyl-5-amino-benzoquinoneimine; IP = isopropanol; TEA = triethanolamine; AA = acetic acid *determined for a 5% solution in dimethylformamide at the boiling temperature, ether
The following Examples are given to provide a good and complete understanding of this aspect of the present invention.
Example L2
The following dyeing and hair-setting lotion is prepared:
______________________________________Dye of Example VIII 0.45 gPolyvinylpyrrolidone sold 2 gunder the mark "K30"Isopropanol 35 gWater, q.s.p. 100 gAmmomia (22.degree. Be) q.s.p. pH 8______________________________________
This dye composition when applied as a hair-setting lotion to bleached hair imparts thereto a coral coloration.
Example L12
The following dyeing and hair-setting lotion is prepared:
______________________________________Dye of Example XIV 0.045 gButyl monoester of the 1 gcopolymer of malic anhydrideand methyl vinyl ether soldunder the mark "Gantrez ES 435".Ethyl alcohol (96.degree. titer) 45 gWater, q.s.p. 100 gTriethanolamine (20% pH 6.8solution) q.s.p.______________________________________
This dye composition when applied as a hair-setting lotion to bleached hair imparts thereto a pearly pastel blue coloration.
Example L13
The following dyeing and hair-setting lotion is prepared:
______________________________________Dye of Example IX 0.2 gDye of Example XVII 0.2 gN--[(4'-amino)phenyl]-2-methyl- 0.05 g5-amino benzoquinoneimineCopolymer of 30% polyvinyl- 2 gpyrrolidone - 70% vinylacetate, sold under the markPVP/VA E 335Ethyl alcohol (96.degree. titer) 40 gWater, q.s.p. 100 gAmmonia (22.degree. Be), q.s.p. pH 9______________________________________
This dye composition when applied as a hair-setting lotion to bleached hair imparts thereto a rosewood coloration.

Number	Date	Country	Kind
75 20155	Jun 1975	FRX
75 34208	Nov 1975	FRX

Nitrated coupler compounds useful in direct dyeing and simultaneous oxidation and direct dyeing of keratinic fibers

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