Copper, cobalt or chromium complex monoazo compounds, processes for their manufacture, their use as dyestuffs and fiber materials dyed with these dyestuffs

Metal-free, fiber-reactive monoazo dyestuffs which contain a carboxyalkylcarboxamide group are known from Japanese Patent Publications Nos. Sho-46-28,903, Sho-46-28,906, Sho-46-42,350 and Sho-46-42,351 and also from German Auslegeschrift No. 1,934,123. However, the dyestuffs have the disadvantage that their dyeings on cellulose fiber materials frequently do not meet the demands often made today in respect of the fastness to light and the fastness to "chlorine bleach" (the term "chlorine bleach" means here and subsequently especially the fastness to bleaching with hypochlorite and to chlorinated water).
With the present invention, novel, valuable compounds which are suitable as dyestuffs have now been found which, surprisingly, display markedly improved fastness characteristics towards the action of light and of chlorine-containing bleaching agents. These novel compounds are copper, cobalt and chromium complex compounds of monoazo compounds which, described in the form of the free acid, have the general formula (1) ##STR1## and their salts. In the formula (1) the radicals in the formula have the following meaning: R is a hydrogen atom or a lower alkyl group, such as a methyl or ethyl group, m represents the number 0 or 1, n represents the number 2, 3 or 4 and D is a radical which, described in the form of the free acid, has the general formula (2), (3) or (4) ##STR2## in which R.sub.1 represents a hydrogen atom, a lower alkyl group, such as a methyl group, a lower alkoxy group, such as a methoxy group, a nitro or sulfonic acid group or a chlorine or bromine atom, Y represents a .beta.-thiosulfatoethyl or .beta.-chloroethyl radical and especially a vinyl or .beta.-sulfatoethyl radical and p denotes the number 0 or 1.
The novel, metal complex compounds of the monoazo compounds of the formula (1) are preferably in the form of their alkali metal and alkaline earth metal salts, such as sodium, potassium or calcium salts; the alkali metal salts are particularly preferred and the novel metal complex compounds are also preferably used in the form of the alkali metal salts.
The novel metal complex compounds are manufactured in the manner according to the invention by diazotizing an amino compound of the general formula (5)
D.sub.1 --NH.sub.2 ( 5)
in which D.sub.1 denotes a radical which, described in the form of the free acid, has the formula (6), (7) or (8) ##STR3## in which R.sub.1, Y and p are as defined above and X represents a hydroxy group or a lower alkoxy group, such as a methoxy group, or a hydrogen atom, and reacting the diazo compound with a coupling component which, described in the form of the free acid, has the general formula (9) ##STR4## in which R, m and n are as defined above, and treating the resulting monoazo compound which, described in the form of the free acid, has the general formula (10) ##STR5## in which D.sub.1, R, m and n are as defined above, with a copper donor, cobalt donor or chromium donor, if appropriate in the presence of an oxidizing agent.
The coupling components of the formula (9) which are used to manufacture the compounds of the formula (1) can be obtained, for example, by acylating an aminonaphtholsulfonic acid which, described in the form of the free acid, has the general formula (11) ##STR6## in which R and m are as defined above, with a dicarboxylic acid anhydride of the formula (12) or with a dicarboxylic acid dihalide of the formula (13) ##STR7## in which n is as defined above and Z denotes a chlorine or bromine atom, in the presence of an acid-binding agent. The dicarboxylic acid anhydrides of the formula (12) and dicarboxylic acid dihalides of the formula (13) are succinic anhydride, glutaric anhydride, adipic anhydride, succinic acid dichloride, succinic acid dibromide, glutaric acid dichloride, glutaric acid dibromide, adipic acid dichloride and adipic acid dibromide. The acid-binding agents used are preferably alkali metal hydroxides or alkaline earth metal hydroxides or alkali metal or alkaline earth metal salts of weak inorganic or organic acids, but advantageously alkali metal carbonates or bicarbonates or alkaline earth metal carbonates or bicarbonates, such as sodium carbonate, potassium carbonate, sodium bicarbonate or calcium carbonate; the acid formed during the reaction is bonded by these compounds and neutralized. The reaction of the aminonaphtholsulfonic acids of the formula (11) with the anhydrides of the formula (12) or halides of the formula (13) can be carried out in an organic or aqueous-organic medium and is preferably carried out in water as the solvent, at a temperature between -5.degree. C. and +60.degree. C. and preferably at a temperature between 0.degree. C. and 30.degree. C., at a pH value between about 2 and 9.
Examples of aminonaphtholsulfonic acids of the formula (11), which are used as starting components, are: 1-amino-8-hydroxynaphthalene-3,6- or -4,6-disulfonic acid, 1-amino-5-hydroxynaphthalene-7-sulfonic acid, 1-amino-5-hydroxynaphthalene-3,7-disulfonic acid, 2-amino-5-hydroxynaphthalene-7-sulfonic acid, 2-amino-8-hydroxynaphthalene-6-sulfonic acid and 2-amino-8-hydroxynaphthalene-3,6-disulfonic acid and also their N-monoalkyl derivatives containing an alkyl group with 1 to 4 C atoms, such as, for example, 2-(N-methylamino)-8-hydroxynaphthalene-6-sulfonic acid, 2-(N-methylamino)-5-hydroxynaphthalene-7-sulfonic acid, 1-(N-methylamino)-8-hydroxynaphthalene-3,6-disulfonic acid and 1-(N-ethylamino)-8-hydroxynaphthalene-3,6-disulfonic acid.
Examples of amines of the general formula (5) used as diazo components in the process according to the invention are: 3- or 4-(.beta.-sulfatoethylsulfonyl)-aniline, 2-amino-4- or -5-(.beta.-sulfatoethylsulfonyl)-anisole, 2-methoxy-5-methyl-4-(.beta.-sulfatoethylsulfonyl)-aniline, 2,5-dimethoxy-4-(.beta.-sulfatoethylsulfonyl)-aniline, 2,4-dimethoxy-5-(.beta.-sulfatoethylsulfonyl)-aniline, 4-amino-3-(.beta.-sulfatoethylsulfonyl)-anisole, 4-amino-3-(.beta.-sulfatoethylsulfonyl)-toluene, 4-(.beta.-sulfatoethylsulfonyl)-aniline-2-sulfonic acid, 2-chloro- or 2-bromo-4-(.beta.-sulfatoethylsulfonyl)-aniline, 2-amino-4- or -5-(.beta.-sulfatoethylsulfonyl)-phenol, 6-chloro-, 6-bromo- or 6-nitro-4-(.beta.-sulfatoethylsulfonyl)-phenol, 2-amino-4-(.beta.-sulfatoethylsulfonyl)-phenol-6-sulfonic acid, 2-amino-4-methyl- or -4-methoxy-5-(.beta.-sulfatoethylsulfonyl)-phenol, 2-amino-5-(.beta.-sulfatoethylsulfonyl)-naphthalene, 2-amino-6-(.beta.-sulfatoethylsulfonyl)-naphthalene, 2-amino-8-(.beta.-sulfatoethylsulfonyl)-naphthalene, 2-amino-8-(.beta.-sulfatoethylsulfonyl)-naphthalene-6-sulfonic acid, 1-amino-5- or -6- or -7-(.beta.-sulfatoethylsulfonyl)-naphthalene and their corresponding vinylsulfonyl, .beta.-thiosulfatoethyl-sulfonyl and .beta.-chloroethylsulfonyl compounds.
The amino compounds of the general formula (5) can be converted to their diazonium compounds in a known manner, by direct or indirect diazotization. The reaction of these diazonium compounds with the coupling components of the general formula (9) to give monoazo dyestuffs of the general formula (10) is preferably carried out in an aqueous medium at temperatures between 0.degree. C. and 50.degree. C. and at a pH value of 2 to 9.
Examples of organic solvents which can be used, on their own or as a mixture or emulsion with water, as the medium for the abovementioned acylation of the aminonaphtholsulfonic acid of the formula (11) are: aromatic hydrocarbons, such as benzene or toluene, chlorinated aromatic or aliphatic hydrocarbons, such as chlorobenzene, o-dichlorobenzene, methylene chloride or ethylene chloride, dialkyl ketones, such as acetone or methyl ethyl ketone, dialkyl ethers, such as diethyl ether, or N-alkylpyrrolidones, such as N-methylpyrrolidone.
The reaction of the monoazo compounds of the general formula (10) in the process according to the invention with the copper donors, cobalt donors or chromium donors is carried out analogously to the known processes for metallization. Preferably, the monoazo compounds of the formula (10) are treated in an aqueous medium at a temperature between 0.degree. and 130.degree. C., if appropriate with reflux cooling or in a closed vessel under pressure, with the metal donors; if the metallization is carried out as oxidative coppering, that is to say the radical X in the formula represents a hydrogen atom in the compounds of the formula (10), a conventional oxidizing agent is added.
The metal donors used in the metallization process according to the invention are, for example, salts of copper, of cobalt and of chromium which are able to donate the said metal in the form of a cation to the hydroxy groups, capable of forming a complex, in the compounds of the formula (1) which may have formed in the oxidative or dealkylating metallization, for example, copper sulfate, copper acetate, copper carbonate, cobalt sulfate, cobalt acetate and chromium sulfate; such compounds which are suitable as metallizing agents are also organic hydroxycarboxylic acids or dicarboxylic acids which contain the metal bonded as a complex, thus, for example, complex chromium or cobalt compounds of aliphatic hydroxycarboxylic acids or aliphatic dicarboxylic acids, especially of alkanes of 2 to 6 C atoms, or chromium complex compounds of aromatic o-hydroxycarboxylic acids, thus, for example, the chromium or cobalt complex compounds of salicylic acid, citric acid, lactic acid, glycollic acid or tartaric acid.
The novel copper, cobalt or chromium complex compounds of the monoazo compounds of formula (1) can be isolated from the solutions in which they have been manufactured, in the form of the alkali metal or alkaline earth metal salts by conventional methods, for example by salting out with sodium chloride, potassium chloride or calcium chloride or by evaporating or spray-drying the dyestuff solution. They are obtained as electrolyte-containing powders in this way.
The novel copper, cobalt and chromium complex compounds, according to the invention, of the compounds of the formula (1) are distinguished by a very good solubility in water. They are suitable for use as dyestuffs, especially for dyeing and printing fiber materials of natural or regenerated cellulose, such as cotton, linen, hemp, jute or filament viscose, or fiber materials of natural, regenerated or synthetic polyamides, such as silk, wool, polyamide 6, polyamide 66 or polyamide 11, and also fiber materials of synthetic polyurethanes or leather. In particular, the metal complex compounds according to the invention are suitable as fiber-reactive dyestuffs for dyeing cellulose or cellulose-containing fiber materials.
The fiber materials of the abovementioned origin which have been dyed with the novel dyestuffs according to the invention and are thus according to the invention display a very good fastness to light and good to very good wet fastness properties, such as, for example, fastness to washing, fastness to chlorine bleach, fastness to milling, fastness to cross-dyeing, fastness to water, fastness to seawater and fastness to perspiration; on dyeing (including printing) these fiber materials, the metal complex compounds according to the invention exhibit a high color strength and are distinguished in particular by the fact that portions of dyestuff which have not been fixed on the fiber can be washed off easily.
The present invention thus also relates to the use of the novel metal complex compounds according to the invention for dyeing and printing the abovementioned fiber materials or leather and to a process for dyeing or printing these fiber materials or leather, which is analogous to known dyeing and printing processes customary in industry and in which a copper, cobalt or chromium complex compound of a monoazo compound of the formula (1) is applied in the form of a solution to the fiber material or leather and is then fixed on the material analogously to processes which are known and customary in industry, especially processes which are known and customary for fixing fiber-reactive dyestuffs. The coloring of the materials containing carboxamide groups as a rule takes place in the neutral to weakly acid pH range by the dyeing and printing processes customary in industry for natural and synthetic polyamide fiber materials and leather; on the other hand, the metal complex compounds according to the invention are as a rule fixed on the cellulose fiber materials with the aid of agents having an alkaline action, for example using alkali metal hydroxides, alkali metal carbonates, alkali metal bicarbonates, alkali metal phosphates or alkali metal silicates, the sodium or potassium salts and hydroxides preferably being employed as the alkali. The use of these procedures corresponds to the printing and dyeing methods which are known and customary in industry for fiber-reactive dyestuffs.
Amongst the novel metal complex compounds of the present invention, the copper complex compounds of the monoazo compounds of the formula (1) are preferred in particular.
Preferred individual compounds which may be mentioned amongst these are, in particular, the compounds which, described in the form of the free acid, have the formulae (1a), (1b), (1c), (1d) and (1e) ##STR8## in which n represents the number 2 or 3 in each case.
In the examples which follow, the relationship between parts by volume and parts by weight is the same as that between liter and kilogram.
EXAMPLE 1
(a) 23.9 parts by weight of 2-amino-5-hydroxynaphthalene-7-sulfonic acid are dissolved in 170 parts of water, with the addition of sodium carbonate, at pH 6-7. 17.2 parts by weight of glutaric anhydride are then added and the mixture is stirred for one hour at room temperature, the pH value being kept between 5 and 6 by sprinkling in sodium carbonate. No further starting compound should be present in the reaction solution at the end of this time.
(b) 200 parts by weight of ice and 35 parts by weight of 31% strength hydrochloric acid are added to a neutral aqueous solution which contains 29.7 parts by weight of 2-amino-4-(.beta.-sulfatoethylsulfonyl)-phenol per 500 parts by volume, and the mixture is then diazotized with an aqueous solution of 7.0 parts by weight of sodium nitrite. A small amount of excess nitrite is destroyed after 15 minutes by adding a little amidosulfonic acid.
The resulting diazonium salt solution is added to the solution obtained according to (a) and the pH value is then adjusted to 6-7 by sprinkling in sodium carbonate. After the coupling reaction has ended, 25 parts by weight of copper sulfate pentahydrate are added and the pH is adjusted to 4.5-5.0 by sprinkling in sodium acetate. The coupling reaction has ended when no further non-coppered dyestuff can be discerned in the chromatogram. 10 parts by weight of kieselguhr are then added and the dyestuff solution is filtered. The resulting copper complex dyestuff which, in the form of its free acid, corresponds to the formula ##STR9## is isolated in the form of the trisodium salt by evaporating the dyestuff solution, the pH of which has been adjusted to 5.0-5.5, in a rotary evaporator in vacuo or by spray-drying this solution.
A dark brown powder is obtained. On cotton, in the presence of agents having an alkaline action, the dyestuff gives intense, bluish-tinged red dyeings and prints which have very good fastness to light and very good wet fastness properties.
EXAMPLE 2
21 g of the dyestuff which has the formula indicated under Example 1(b) and has been prepared according to Example 1 are dissolved, in the form of the trisodium salt, together with 50 g of urea in 300 g of water. The solution is stirred into 400 g of 4% strength alginate thickener at below 40.degree. C. After adding 10 g of sodium bicarbonate, the total amount is increased to 1,000 g by adding further 4% strength alginate thickener and the print paste is stirred well. Cotton fabric is printed with this print paste and the prints are dried at 60.degree. C. They are then treated for 5 minutes in a Mather-Platt steamer with saturated steam at 100.degree.-103.degree. C. They are then rinsed with cold and hot water and then treated with water at 80.degree.-90.degree. C. to which a neutral detergent has been added. The prints are then rinsed again with cold water and then dried. Intense, dark bluish-tinged red prints with very good fastness to light and very good wet fastness properties are obtained.
EXAMPLE 3
Mercerized cotton fabric is padded at 20.degree. C., with an 80% liquor pick-up, with a liquor which contains, per liter, 20 g of the dyestuff of the formula indicated under Example 1(b)--prepared according to Example 1--and 18 g of an aqueous 33% strength sodium hydroxide solution. The fabric is then wound on a beam and wrapped in a film and left to stand for 8 hours at room temperature. The goods are then rinsed with cold water, neutralized with acetic acid, rinsed with cold, hot and boiling water and finally dried. This gives an intense, bluish-tinged red dyeing with very good fastness to light and very good wet fastness properties.
EXAMPLE 4
100 parts by weight of mercerized cotton fabric are dyed for 10 minutes at 60.degree. C. in 3,000 parts by volume of a liquor which contains 5 parts by weight of the dyestuff of the formula indicated under Example 1(b)--prepared according to Example 1--and 150 parts by weight of anhydrous sodium sulfate. 15 parts by weight of anhydrous sodium carbonate and 4 parts by weight of 33% strength sodium hydroxide solution are then added. Dyeing is continued for a further 60 minutes at 60.degree. C. The cotton fabric is then neutralized with acetic acid and then rinsed with cold, hot and boiling water, in fresh baths in each case, and finally is dried. This gives an intense, bluish-tinged red dyeing with very good fastness to light and very good wet fastness properties.
EXAMPLE 5
100 parts by weight of wool fabric are introduced into a dyebath which is at 40.degree. C. and contains 2 parts by weight of the dyestuff of the formula indicated under Example 1(b)--prepared according to Example 1--and also 0.15 part by weight of the adduct of 12 moles of ethylene oxide with 1 mole of stearylamine, 2 parts by weight of ammonium acetate and 2 parts by weight of 60% strength acetic acid in 3,000 parts of water. The temperature of the dyebath is raised to the boil in the course of 30 minutes and dyeing is then carried out for 60 minutes at 100.degree. C. After the customary washing out and finishing, an intense, bluish-tinged red dyeing with very good fastness to light and very good wet fastness properties is obtained.
If the wool fabric is replaced by 100 parts by weight of polycaprolactam fabric, an intense, bluish-tinged red dyeing with very good fastness properties in use is again obtained.
The dyestuffs described below can also be used in accordance with the printing or dyeing methods described in Examples 2 to 5, on the said textile substrates. The prints and dyeings thus obtained are distinguished by high color strength, good to very good fastness to light and good to very good wet fastness properties.
EXAMPLE 6
If, in Example 1 under (b), the 25 parts by weight of copper sulfate pentahydrate are replaced by 14.1 parts by weight of cobalt sulfate heptahydrate and, during the metallization, the pH value is adjusted to 5-5.5 and the temperature is adjusted to 50.degree.-60.degree. C., but in other respects the procedure is as described under Example 1, the 1:2 cobalt complex compound of the dyestuff which, in the form of its free acid, has the formula ##STR10## is formed. The neutral dyestuff is isolated by spray-drying the resulting dyestuff solution at pH 5.0-5.5. A dark brown powder is obtained. On cotton, in the presense of agents having an alkaline action, the dyestuff gives brown dyeings and prints with good fastness to light and good wet fastness properties.
EXAMPLE 7
If, in Example 1 under (b), the 25 parts by weight of copper sulfate pentahydrate are replaced by the same amount of chromium-potassium sulfate and during the metallization the reaction mixture is heated under reflux at 95.degree.-100.degree. C., at pH 5-6, for several hours, the 1:2 chromium complex compound of the dyestuff which, in the form of its free acid, has the formula given under Example 6, is formed.
The neutral dyestuff is isolated by spray-drying or by evaporating the dyestuff solution, the pH of which has been adjusted to 5-5.5. A dark brown powder is obtained. On cotton, in the presence of agents having an alkaline action, the dyestuff gives intense, brown-violet dyeings and prints with good fastness to light and good wet fastness properties.
EXAMPLE 8
If, in Example 1 under (a), the 17.2 parts by weight of glutaric anhydride are replaced by 15.1 parts by weight of succinic anhydride and in other respects the procedure is exactly as described under Example 1, a brown dyestuff powder is again obtained; this powder contains the dyestuff which, in the form of its free acid, has the formula ##STR11## in the form of the neutral trisodium salt. Isolation of the dyestuff can be effected not only by evaporating or spray-drying the resulting dyestuff solution but also by salting out with sodium chloride and subsequently filtering off the dyestuff which has precipitated and drying this. On cotton, in the presence of agents having an alkaline action, the dyestuff gives intense, bluish-tinged red dyeings and prints with very good fastness to light and good to very good wet fastness properties.
EXAMPLE 9
If, in Example 1 under (a), the 17.2 parts by weight of glutaric anhydride are replaced by 19.4 parts by weight of adipic anhydride and in other respects the procedure is exactly as described under Example 1, a brown dyestuff powder is obtained which contains the dyestuff which, in the form of its free acid, has the formula ##STR12## in the form of the neutral trisodium salt. On cotton, in the presence of agents having an alkaline action, the dyestuff gives intense bluish-tinged red dyeings and prints with very good fastness to light and very good wet fastness properties.
EXAMPLE 10
(a) 25 parts by weight of adipic acid dichloride are allowed to run into 70 parts by weight of N-methylpyrrolidone. 16 parts by weight of 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid, in the form of the dry, powdered monosodium salt, are then introduced in the course of one hour. After stirring for 24 hours, virtually no further free amino groups are present. The reaction mixture is diluted with 300 parts of water and the pH is then adjusted to 5-6 by sprinkling in sodium carbonate. The resulting neutral solution contains the compound which has been acylated on the amino group and which, in the form of its free acid, has the formula ##STR13## in the form of the trisodium salt.
(b) 100 parts by weight of ice and 18 parts by weight of 31% strength hydrochloric acid are added to an aqueous neutral solution which contains 14.85 parts by weight of 2-amino-5-(.beta.-sulfatoethylsulfonyl)-phenol per 250 parts by volume and the mixture is then diazotized with an aqueous solution of 3.5 parts by weight of sodium nitrite. After 15 minutes, a small amount of excess nitrite is destroyed by adding amidosulfonic acid. The resulting diazonium salt solution is added to the solution obtained according to (a) and the pH value is then adjusted to 6-7 by sprinkling in sodium carbonate. After the coupling reaction has ended, 12.5 parts by weight of copper sulfate pentahydrate are added and the pH value is adjusted to 4.5-5.0 by sprinkling in sodium acetate. When no further non-coppered dyestuff can be detected in the chromatogram, 5 parts by weight of kieselguhr are added to the dyestuff solution and the solution is filtered. The resulting copper complex dyestuff which, in the form of its free acid, has the formula ##STR14## is isolated as the tetrasodium salt by evaporating, in vacuo, or spray-drying the dyestuff solution, the pH of which has been adjusted to 5-5.5. A dark brown-violet powder is obtained. On cotton, in the presence of agents having an alkaline action, the dyestuff gives intense violet dyeings and prints with very good fastness to light and good to very good wet fastness properties.
EXAMPLE 11
28.1 parts by weight of 1-amino-4-(.beta.-sulfatoethylsulfonyl)-benzene are diazotized in 100 parts of water, 100 parts by weight of ice and 35 parts by weight of 31% strength hydrochloric acid at 0.degree.-10.degree. C. with an aqueous solution of 7.0 parts by weight of sodium nitrite. After 15 minutes a small amount of excess nitrite is destroyed by adding amidosulfonic acid. The resulting diazonium salt suspension is added to the solution obtained according to Example 1 (a) and the pH value is kept between 4 and 5 by sprinkling in sodium carbonate. After the coupling reaction has ended, 40 parts by weight of copper sulfate pentahydrate and also 40 parts by weight of crystalline sodium acetate are added to the reaction mixture and the pH is adjusted to 5.0-5.2 with sodium carbonate. 27 parts by weight of 30% strength hydrogen peroxide solution are then allowed to run in dropwise at 20.degree.-30.degree. C. and pH 5.0-5.2 in the course of 3 hours. The mixture is stirred for a further 2 hours and a check is made, by means of a chromatogram, to determine whether coppering is complete. If the mixture still contains non-coppered dyestuff, correspondingly more hydrogen peroxide solution must be added in addition.
After coppering is complete, the mixture is clarified by adding kieselguhr. The resulting copper complex dyestuff which, in the form of its free acid, has the formula ##STR15## is precipitated from the clarified dyestuff solution by sprinkling in potassium chloride; the precipitate is filtered off, washed with dilute aqueous potassium chloride solution and dried. On cotton, in the presence of agents having an alkaline action, the resulting dyestuff gives deep red-violet dyeings and prints with very good fastness to light and very good wet fastness properties.
EXAMPLE 12
If, in Example 11, the 28.1 parts by weight of 1-amino-4-(.beta.-sulfatoethylsulfonyl)-benzene are replaced by 29.7 parts by weight of 1-amino-4-(.beta.-thiosulfatoethylsulfonyl)-benzene and in other respects the procedure is exactly as described under Example 11, a dyestuff is obtained which, in the form of its free acid, has the formula ##STR16## and which, on cotton, likewise gives intense, red-violet dyeings and prints with very good fastness to light and very good wet fastness properties.
EXAMPLE 13
(a) 31.9 parts by weight of 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid are dissolved in 100 parts of water with the addition of sodium carbonate, at pH 6-7. 13.7 parts by weight of glutaric anhydride are then sprinkled in, with good stirring. The mixture is stirred at room temperature for one hour and during this time the pH value is kept between 5 and 6 by adding sodium carbonate. At the end of this time, no further free amino groups should be detectable in the solution obtained.
(b) 18.3 parts by weight of 1-amino-4-vinylsulfonylbenzene are diazotized in 100 parts of water, 100 parts by weight of ice and 30 parts by weight of 31% strength hydrochloric acid at 0.degree.-5.degree. C. with an aqueous solution of 7.0 parts by weight of sodium nitrite. After 30 minutes, a small amount of excess nitrite is destroyed by adding amidosulfonic acid. The diazotization mixture is allowed to run into the solution prepared according to (a) and the pH value is kept between 5.5 and 6.5 by sprinkling in sodium carbonate. After the coupling reaction has ended, 40 parts by weight of copper sulfate pentahydrate and 40 parts by weight of crystalline sodium acetate are added to the reaction mixture and the pH is adjusted to 5.0-5.2 with sodium carbonate. 27 parts by weight of 30% strength hydrogen peroxide solution are now allowed to run in dropwise in the course of 3 hours, at 20.degree.-30.degree. C. and pH 5.0-5.2. The reaction mixture is stirred for a further 2 hours and a check is made, by means of a chromatogram, to determine whether the non-coppered dyestuff has disappeared. If a residue should still be present, correspondingly more hydrogen peroxide solution must be added in addition. After coppering is complete, 10 parts by weight of kieselguhr are added to the dyestuff solution, 8 parts by weight of oxalic acid dihydrate are then introduced, with stirring, and the pH is adjusted to 6 by sprinkling in sodium carbonate. The mixture is heated to 60.degree.-65.degree. C. and filtered. The pH of the filtrate is adjusted to 5.0- 5.5 with hydrochloric acid and the filtrate is then evaporated to dryness in a vacuum cabinet or a circulating air cabinet at 60.degree. C. On cotton, in the presence of agents having an alkaline action, the resulting dyestuff, which, in the form of its free acid, has the formula ##STR17## gives intense violet dyeings and prints with very good fastness to light and very good wet fastness properties.
EXAMPLE 14
If, in Example 13, the 18.3 parts by weight of 1-amino-4-vinylsulfonyl-benzene are replaced by 22.0 parts by weight of 1-amino-4-(.beta.-chloroethylsulfonyl)-benzene and in other respects the procedure is as described under Example 13, a dyestuff is obtained which, in the form of its free acid, has the formula ##STR18## and which, on cotton, in the presence of agents having an alkaline action, gives intense violet dyeings and prints with very good fastness to light and very good wet fastness properties.
EXAMPLE 15
41.1 parts by weight of 2-amino-8-(.beta.-sulfatoethylsulfonyl)-naphthalene-6-sulfonic acid are dissolved in 150 parts of water at pH 6-7, sodium carbonate being sprinkled in, and then, after adding 100 parts by weight of ice and 35 parts by weight of 31% strength hydrochloric acid, diazotized at 0.degree.-10.degree. C. by dropwise addition of an aqueous solution of 7.0 parts by weight of sodium nitrite. 15 minutes later, a small amount of excess nitrite is destroyed by adding amidosulfonic acid. The diazotization mixture is now added to a solution prepared according to Example 13 (a). The pH value is kept between 5.5 and 6.5 by sprinkling in sodium carbonate. After the coupling reaction has ended, 30 parts by weight of copper sulfate pentahydrate and 30 parts by weight of crystalline sodium acetate are added. 40 parts by weight of 35% strength hydrogen peroxide solution are then allowed to run in dropwise in the course of 3 hours, at 40.degree.-50.degree. C., and during the addition the pH value is kept at between 4.7 and 5.2 by sprinkling in sodium carbonate. After coppering is complete (as can be seen from the chromatogram), 10 parts by weight of kieselguhr are added and the solution is filtered. The resulting copper complex dyestuff which, in the form of its free acid, has the formula ##STR19## is precipitated by sprinkling potassium chloride into the filtrate. The dyestuff precipitate is filtered off, washed with dilute aqueous potassium chloride solution and dried in a circulating air cabinet at 60.degree. C. On cotton, in the presence of agents having an alkaline action, the dyestuff gives deep-colored blue dyeings and prints with very good fastness to light and good to very good wet fastness properties.
EXAMPLE 16
34.1 parts by weight of 2,5-dimethoxy-4-(.beta.-sulfatoethylsulfonyl)-aniline are diazotized in 150 parts of water, 150 parts by weight of ice and 35 parts by weight of 31% strength hydrochloric acid with an aqueous solution of 7.0 parts by weight of sodium nitrite. After 15 minutes, a small amount of excess nitrite is destroyed by adding amidosulfonic acid. The diazotization mixture is then allowed to run into a solution prepared according to Example 13 (a) and the pH value is kept between 5 and 6 by sprinkling in sodium carbonate. After the coupling reaction has ended, 40 parts by weight of copper sulfate pentahydrate and then 40 parts by weight of crystalline sodium acetate are introduced. The mixture is then allowed to boil under reflux at pH 4.0 to 4.5 until no further non-coppered dyestuff can be seen in the chromatogram. The dyestuff solution is then clarified by adding kieselguhr. The resulting dyestuff which, in the form of its free acid, has the formula ##STR20## is precipitated by sprinkling sodium chloride into the filtrate. The dyestuff precipitate is filtered off, washed with dilute aqueous sodium chloride solution and dried. On cotton, in the presence of agents having an alkaline action, the dyestuff gives intense, reddish-tinged blue dyeings and prints with very good fastness to light and very good wet fastness properties.
EXAMPLE 17
If, in Example 11, the 1-amino-4-(.beta.-sulfatoethylsulfonyl)-benzene is replaced by the same amount of 1-amino-3-(.beta.-sulfatoethylsulfonyl)-benzene and in other respects the procedure is as described under Example 11, the dyestuff which, in the form of its free acid, has the formula ##STR21## is obtained. The dyestuff can be salted out with potassium chloride and filtered off. However, the dyestuff can also be isolated by evaporating or spray-drying the dyestuff solution, if the excess copper not bonded as a complex has previously been precipitated as copper oxalate, at pH 5-6, by sprinkling in 5.5 parts by weight of oxalic acid and the oxalate has been filtered off. On cellulose textile material, in the presence of agents having an alkaline action, the resulting dyestuff gives deep, bluish-tinged red dyeings and prints with very good properties in respect of the fastness to light and fastness to washing.
The table which follows describes further metal complex compounds of monoazo dyestuffs, which can be prepared analogously to the processes described in Examples 1 and 6 to 17. The radical of the diazo component is given in column I, the radical of the coupling component is given in column II, the complex-forming metal is given in column III and the color shade of the dyeing produced on cotton by the monoazo metal complex dyestuff is given in column IV.
TABLE__________________________________________________________________________ I Radical III of the II Complex- IVEx- diazo Radical of the forming Color shade onample component coupling component metal cotton__________________________________________________________________________18 ##STR22## ##STR23## cobalt brown19 " " chromium violet20 ##STR24## " copper claret21 " " cobalt violet-brown22 " " chromium reddish-tinged navy-blue23 ##STR25## " copper red-violet24 " " cobalt violet25 " " chromium navy-blue26 ##STR26## " copper violet27 " " cobalt navy-blue28 " " chromium navy-blue29 ##STR27## " copper bluish-tinged red30 ##STR28## " copper red-violet31 ##STR29## ##STR30## copper red-violet32 ##STR31## " copper red-violet33 ##STR32## " copper red-violet34 ##STR33## " copper bluish-tinged red35 " " cobalt brown36 " " chromium violet37 ##STR34## " copper bluish-tinged red38 " " cobalt brown39 " " chromium violet40 ##STR35## " copper bluish-tinged red41 ##STR36## " copper red-violet42 " " cobalt brown-violet43 " " chromium navy-blue44 ##STR37## " copper violet45 ##STR38## " copper violet46 " " cobalt navy-blue47 " " chromium navy-blue48 ##STR39## " copper violet49 ##STR40## " copper violet50 ##STR41## " copper violet51 ##STR42## " copper violet52 ##STR43## " copper bluish-tinged red53 " " cobalt brown54 " " chromium violet55 ##STR44## " copper bluish-tinged red56 " " cobalt brown57 " " chromium violet58 ##STR45## " copper bluish-tinged red59 " " cobalt brown60 " " chromium violet61 ##STR46## " copper violet62 ##STR47## " copper violet63 ##STR48## " copper violet64 ##STR49## " copper violet65 ##STR50## " copper violet66 ##STR51## " copper violet67 ##STR52## " copper claret68 ##STR53## " copper claret69 ##STR54## " copper claret70 ##STR55## ##STR56## copper red-violet71 " " cobalt brown72 " " chromium greyish-tinged violet73 ##STR57## " copper red-violet74 ##STR58## " copper red-violet75 ##STR59## " copper red-violet76 ##STR60## " copper reddish-tinged violet77 ##STR61## " copper reddish-tinged violet78 ##STR62## " copper reddish-tinged violet79 ##STR63## " copper reddish-tinged violet80 ##STR64## " copper violet81 ##STR65## " copper reddish-tinged blue82 ##STR66## " copper red-violet83 ##STR67## " copper red-violet84 ##STR68## " copper violet85 ##STR69## " copper violet86 ##STR70## " copper red-violet87 " " cobalt brown88 " " chromium grey-violet89 ##STR71## " copper red-violet90 ##STR72## " copper red-violet91 ##STR73## " copper reddish-tinged blue92 ##STR74## " copper reddish-tinged blue93 ##STR75## " copper reddish-tinged blue94 ##STR76## " copper reddish-tinged blue95 ##STR77## " copper reddish-tinged blue96 ##STR78## " copper reddish-tinged blue97 ##STR79## " copper reddish-tinged blue98 ##STR80## ##STR81## copper red-violet99 " " cobalt brown100 " " chromium greyish-tinged violet101 ##STR82## " copper reddish-tinged violet102 " " cobalt brown103 " " chromium grey, violet- tinged104 ##STR83## " copper reddish-tinged blue105 ##STR84## " copper reddish-tinged blue106 ##STR85## ##STR86## cobalt brown107 " " copper red-violet108 " " chromium violet109 ##STR87## " copper reddish-tinged violet110 " " cobalt brown111 " " chromium grey, violet- tinged112 ##STR88## " copper reddish-tinged blue113 ##STR89## " copper reddish-tinged blue114 ##STR90## ##STR91## copper red-violet115 " " cobalt brown116 " " chromium greyish-tinged violet117 ##STR92## " copper reddish-tinged blue118 ##STR93## ##STR94## copper red-violet119 " " cobalt violet120 " " chromium navy-blue121 ##STR95## " copper red-violet122 ##STR96## " copper red-violet123 ##STR97## " copper red-violet124 ##STR98## " copper violet125 " " cobalt bluish-tinged violet126 " " chromium navy-blue127 ##STR99## " copper violet128 ##STR100## " copper violet129 ##STR101## " copper violet130 ##STR102## " copper violet131 ##STR103## " copper reddish-tinged blue132 ##STR104## " copper red-violet133 ##STR105## " copper violet, reddish-tinged134 ##STR106## " copper violet135 ##STR107## " copper violet136 ##STR108## " copper violet137 ##STR109## " copper red-violet138 " " cobalt violet139 " " chromium navy-blue140 ##STR110## " chromium red-violet141 ##STR111## " chromium red-violet142 ##STR112## " chromium red-violet143 ##STR113## " copper blue144 ##STR114## " copper blue145 ##STR115## " copper blue146 ##STR116## " copper blue147 ##STR117## " copper blue148 ##STR118## " copper blue149 ##STR119## " copper blue150 ##STR120## " copper blue151 ##STR121## " copper blue152 ##STR122## ##STR123## copper red-violet153 " " cobalt violet154 " " chromium navy-blue155 ##STR124## " copper violet156 " " cobalt violet157 " " chromium navy-blue158 ##STR125## " copper reddish-tinged blue159 ##STR126## " copper blue160 ##STR127## " copper blue161 ##STR128## ##STR129## copper bluish-tinged red162 " " cobalt brown163 " " chromium brown-violet164 ##STR130## ##STR131## copper claret165 " " cobalt brown-violet166 " " chromium reddish-tinged navy-blue167 ##STR132## " copper violet168 ##STR133## ##STR134## copper red-violet169 " " cobalt brown170 " " chromium violet171 ##STR135## " copper reddish-tinged violet172 ##STR136## ##STR137## copper red-violet173 " " cobalt violet174 " " chromium navy-blue175 ##STR138## " copper violet176 " " cobalt bluish-tinged violet177 " " chromium navy-blue178 ##STR139## " copper blue179 ##STR140## " copper blue180 ##STR141## ##STR142## copper red-violet181 ##STR143## " cobalt violet182 " " chromium navy-blue183 ##STR144## " copper violet184 ##STR145## " copper blue185 ##STR146## ##STR147## copper bluish-tinged red186 " ##STR148## copper bluish-tinged red187 " " cobalt brown188 " " chromium violet189 ##STR149## " copper claret190 " " cobalt violet-brown191 " " chromium reddish-tinged navy-blue192 ##STR150## " copper bluish-tinged red193 ##STR151## " copper bluish-tinged red194 ##STR152## " copper bluish-tinged red195 ##STR153## " copper claret196 ##STR154## " copper claret197 ##STR155## ##STR156## copper claret198 ##STR157## " copper red-violet199 " " cobalt violet200 " " chromium navy-blue201 ##STR158## ##STR159## copper violet202 " " cobalt navy-blue203 " " chromium navy-blue204 ##STR160## " copper bluish-tinged red205 ##STR161## " copper red-violet206 ##STR162## " copper red-violet207 ##STR163## " copper red-violet208 ##STR164## " copper red-violet209 ##STR165## " copper bluish-tinged red210 " " cobalt brown211 " " chromium brown-violet212 ##STR166## ##STR167## copper bluish-tinged red213 " " cobalt brown214 " " chromium violet215 ##STR168## " copper bluish-tinged red216 ##STR169## " copper red-violet217 " " cobalt brown-violet218 " " chromium navy-blue219 ##STR170## " copper violet220 ##STR171## " copper violet221 " " cobalt navy-blue222 " " chromium navy-blue223 ##STR172## " copper violet224 ##STR173## " copper violet225 ##STR174## " copper violet226 ##STR175## " copper violet227 ##STR176## " copper violet228 ##STR177## ##STR178## copper violet229 ##STR179## ##STR180## copper red-violet230 " " cobalt brown231 " " chromium violet232 ##STR181## " copper red-violet233 ##STR182## " copper red-violet234 ##STR183## " copper red-violet235 ##STR184## " copper red-violet236 " " cobalt violet-brown237 " " chromium navy-blue238 ##STR185## " copper red-violet239 ##STR186## " copper red-violet240 ##STR187## " copper red-violet241 ##STR188## " copper violet242 ##STR189## " copper reddish-tinged blue243 ##STR190## " copper red-violet244 ##STR191## " copper red-violet245 ##STR192## " copper violet246 ##STR193## " copper violet247 ##STR194## " copper red-violet248 " " cobalt brown249 " " chromium violet250 ##STR195## " copper red-violet251 ##STR196## " copper red-violet252 ##STR197## " copper reddish-tinged blue253 ##STR198## " copper reddish-tinged blue254 ##STR199## " copper reddish-tinged blue255 ##STR200## " copper reddish-tinged blue256 ##STR201## " copper reddish-tinged blue257 ##STR202## ##STR203## copper red-violet258 " " cobalt brown259 " " chromium violet260 ##STR204## " copper reddish-tinged violet261 ##STR205## " copper reddish-tinged blue262 ##STR206## ##STR207## copper red-violet263 " " cobalt brown264 " " chromium violet265 ##STR208## " copper reddish-tinged violet266 ##STR209## " copper reddish-tinged blue267 ##STR210## ##STR211## copper red-violet268 " " cobalt brown269 " " chromium violet270 ##STR212## " copper reddish-tinged violet271 ##STR213## " copper reddish-tinged blue272 ##STR214## ##STR215## copper red-violet273 " " cobalt violet274 " " chromium navy-blue275 ##STR216## ##STR217## copper red-violet276 ##STR218## " copper red-violet277 ##STR219## " copper red-violet278 ##STR220## " copper violet279 " " cobalt bluish-tinged violet280 " " chromium navy-blue281 ##STR221## " copper violet282 ##STR222## " copper violet283 ##STR223## " copper violet284 ##STR224## " copper violet285 ##STR225## " copper reddish-tinged blue286 ##STR226## " copper red-violet287 ##STR227## " copper reddish-tinged violet288 ##STR228## " copper violet289 ##STR229## " copper violet290 ##STR230## " copper violet291 ##STR231## " copper red-violet292 " " cobalt violet293 " " chromium navy-blue294 ##STR232## " copper red-violet295 ##STR233## " copper red-violet296 ##STR234## " copper violet297 ##STR235## " copper blue298 ##STR236## " copper blue299 ##STR237## " copper blue300 ##STR238## " copper blue301 ##STR239## " copper blue302 ##STR240## " copper blue303 " " cobalt navy-blue304 " " chromium greenish-tinged navy-blue305 ##STR241## " copper blue306 ##STR242## ##STR243## copper blue307 ##STR244## " copper blue308 ##STR245## ##STR246## copper red-violet309 " " cobalt violet310 " " chromium navy-blue311 ##STR247## " copper violet312 " " cobalt violet313 " " chromium navy-blue314 ##STR248## " copper blue315 ##STR249## " copper blue316 ##STR250## " copper blue317 ##STR251## ##STR252## copper bluish-tinged red318 " " cobalt brown319 " " chromium brown-violet320 ##STR253## " copper claret321 ##STR254## ##STR255## copper red-violet322 ##STR256## " copper reddish-tinged violet323 ##STR257## ##STR258## copper red-violet324 " " cobalt violet325 " " chromium navy-blue326 ##STR259## " copper violet327 " " cobalt bluish-tinged violet328 " " chromium navy-blue329 ##STR260## " copper blue330 ##STR261## ##STR262## copper red-violet331 " " cobalt violet332 " " chromium navy-blue333 ##STR263## " copper violet334 ##STR264## " copper blue335 ##STR265## ##STR266## copper bluish-tinged red336 " " cobalt brown337 " " chromium violet338 ##STR267## " copper claret339 " " cobalt violet-brown340 " " chromium reddish-tinged navy-blue341 ##STR268## " copper bluish-tinged red342 ##STR269## " copper bluish-tinged red343 ##STR270## " copper bluish-tinged red344 ##STR271## " copper claret345 ##STR272## " copper claret346 ##STR273## " copper claret347 ##STR274## " copper red-violet348 ##STR275## " copper violet349 ##STR276## " copper bluish-tinged red350 ##STR277## " copper red-violet351 ##STR278## " copper red-violet352 ##STR279## " copper red-violet353 ##STR280## " copper bluish-tinged red354 " " cobalt brown355 " " chromium brown-violet356 ##STR281## " copper bluish-tinged red357 ##STR282## " copper bluish-tinged red358 ##STR283## " copper red-violet359 " " cobalt brown-violet360 " " chromium navy-blue361 ##STR284## " copper violet362 ##STR285## " copper violet363 " " cobalt navy-blue364 " " chromium navy-blue365 ##STR286## " copper violet366 ##STR287## " copper violet367 ##STR288## " copper violet368 ##STR289## " copper violet369 ##STR290## " copper violet370 ##STR291## " copper violet371 ##STR292## ##STR293## copper red-violet372 " " cobalt brown373 " " chromium violet374 ##STR294## " copper red-violet375 ##STR295## " copper red-violet376 ##STR296## " copper red-violet377 ##STR297## " copper red-violet378 " " cobalt violet-brown379 " " chromium navy-blue380 ##STR298## " copper red-violet381 ##STR299## " copper red-violet382 ##STR300## " copper red-violet383 ##STR301## " copper violet384 ##STR302## " copper reddish-tinged blue385 ##STR303## " copper red-violet386 ##STR304## " copper red-violet387 ##STR305## " copper violet388 ##STR306## " copper red-violet389 " " cobalt brown390 " " chromium violet391 ##STR307## " copper red-violet392 ##STR308## " copper red-violet393 ##STR309## " copper reddish-tinged blue394 ##STR310## " copper reddish-tinged blue395 ##STR311## " copper reddish-tinged blue396 ##STR312## " copper reddish-tinged blue397 ##STR313## ##STR314## copper red-violet398 " " cobalt brown399 " " chromium violet400 ##STR315## " copper reddish-tinged violet401 ##STR316## " copper reddish-tinged blue402 ##STR317## ##STR318## copper red-violet403 " " cobalt brown404 " " chromium violet405 ##STR319## " copper reddish-tinged violet406 ##STR320## " copper reddish-tingedblue407 ##STR321## ##STR322## copper red-violet408 " " cobalt brown409 " " chromium violet410 ##STR323## " copper reddish-tingedviolet411 ##STR324## " copper reddish-tingedblue412 ##STR325## ##STR326## copper red-violet413 " " cobalt violet414 " " chromium navy-blue415 ##STR327## " copper red-violet416 ##STR328## " copper red-violet417 ##STR329## " copper red-violet418 ##STR330## " copper violet419 " " cobalt bluish-tinged violet420 " " chromium navy-blue421 ##STR331## " copper violet422 ##STR332## " copper violet423 ##STR333## " copper violet424 ##STR334## " copper violet425 ##STR335## " copper reddish-tingedblue426 ##STR336## " copper red-violet427 ##STR337## " copper reddish-tingedviolet428 ##STR338## " copper violet429 ##STR339## " copper violet430 ##STR340## " copper red-violet431 " " cobalt violet432 " " chromium navy-blue433 ##STR341## " copper red-violet434 ##STR342## " copper red-violet435 ##STR343## " copper violet436 ##STR344## " copper blue437 ##STR345## " copper blue438 ##STR346## ##STR347## copper blue439 ##STR348## " copper blue440 ##STR349## " copper blue441 ##STR350## " copper blue442 ##STR351## " copper blue443 " " cobalt navy-blue444 " " chromium greenish-tinged navy-blue445 ##STR352## " copper blue446 ##STR353## " copper blue447 ##STR354## ##STR355## copper red-violet448 " " cobalt violet449 " " chromium navy-blue450 ##STR356## " copper violet451 " " cobalt violet452 " " chromium navy-blue453 ##STR357## " copper blue454 ##STR358## " copper blue455 ##STR359## ##STR360## copper blue456 ##STR361## ##STR362## copper bluish-tingedred457 " " cobalt brown458 " " chromium brown-violet459 ##STR363## " copper claret460 ##STR364## ##STR365## copper red-violet461 ##STR366## " copper reddish-tinged violet462 ##STR367## ##STR368## copper red-violet463 " " cobalt violet464 " " chromium navy-blue465 ##STR369## " copper violet466 " " cobalt bluish-tinged violet467 " " chromium navy-blue468 ##STR370## " copper blue469 ##STR371## " copper blue470 ##STR372## ##STR373## copper red-violet471 " " cobalt violet472 " " chromium navy-blue473 ##STR374## " copper violet474 ##STR375## " copper blue__________________________________________________________________________ In this Table the symbols have the following meaning: Y.sub.1 : SO.sub.2CH.sub.2CH.sub.2OSO.sub.3 H Y.sub.2 : SO.sub.2CHCH.sub.2 Y.sub.3 : SO.sub.2CH.sub.2CH.sub.2SSO.sub.3 H Y.sub.4 : SO.sub.2CH.sub.2CH.sub.2Cl

Number	Name	Date
3939141	Meininger et al.	Feb 1976
3966704	Meininger et al.	Jun 1976
4000966	Meininger et al.	Jan 1977

Copper, cobalt or chromium complex monoazo compounds, processes for their manufacture, their use as dyestuffs and fiber materials dyed with these dyestuffs

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