Claims
- 1. A nondiffusible compound having a releasable 6-arylazo-3-pyridinol magenta dye moiety or precursor thereof, said compound having the formula: ##STR33## wherein: (a) R represents hydroxy or amino;
- (b) R.sup.1 represents hydrogen, a hydrolyzable moiety or CAR;
- (c) G represents carboxy; a hydrolyzable ester group having the formula COOR.sup.2, wherein R.sup.2 is alkyl or substituted alkyl having 1 to about 8 carbon atoms or aryl or substituted aryl having 6 to about 10 carbon atoms; or sulfamoyl having the formula SO.sub.2 NHR.sup.3 wherein R.sup.3 represents hydrogen, alkyl or substituted alkyl having 1 to about 8 carbon atoms, aryl or substituted aryl having 6 to about 10 carbon atoms, or carbacyl having 1 to about 8 carbon atoms;
- (d) CAR represents a ballasted carrier moiety capable of releasing said diffusible 6-arylazo-3-pyridinol magenta dye moiety or precursor thereof under alkaline conditions; and
- (e) n is 0, 1 or 2, with the proviso that when n is 0, then R.sup.1 is CAR;
- and wherein the phenyl ring illustrated above is not substituted with a nitro group.
- 2. The compound of claim 1 wherein G represents carboxy, COOCH.sub.3, SO.sub.2 NH.sub.2, SO.sub.2 NHCOC.sub.6 H.sub.5, SO.sub.2 NHC.sub.6 H.sub.5, SO.sub.2 NHCH.sub.2 C.sub.6 H.sub.5, ##STR34## or SO.sub.2 NHCH.sub.3.
- 3. The compound of claim 1 wherein R represents hydroxy, R.sup.1 represents hydrogen, G represents carboxy and n is 1.
- 4. The compound of claim 1 wherein R represents hydroxy, R.sup.1 represents CAR, G represents carboxy and n is 0.
- 5. The compound of claim 1 wherein CAR is a group having the formula:
- (Ballast-Carrier-Link)
- wherein:
- (a) Ballast is an organic ballasting radical of such molecular size and configuration as to render said compound nondiffusible in a photographic element during development in an alkaline processing composition;
- (b) Carrier is an oxidizable acyclic, carbocyclic or heterocyclic moiety; and
- (c) Link represents a group which, upon oxidation of said carrier moiety, is capable of being hydrolytically cleaved to release said diffusible dye.
- 6. The compound of claim 5 wherein the Carrier moiety contains atoms according to the following configuration:
- a(--C.dbd.C).sub.b --
- wherein:
- b is a positive integer of 1 to 2; and
- a represents the radicals OH, SH, NH-- or hydrolyzable precursors thereof.
- 7. The compound of claim 1 wherein CAR is a group having the formula: ##STR35## wherein:
- (a) Ballast is an organic ballasting radical of such molecular size and configuration as to render said compound nondiffusible in a photographic element during development in an alkaline processing composition;
- (b) D is OR.sup.4 or NHR.sup.5 wherein R.sup.4 is hydrogen or a hydrolyzable moiety and R.sup.5 is hydrogen or substituted or unsubstituted alkyl of 1 to 22 carbon atoms;
- (c) Y represents the atoms necessary to complete a benzene nucleus, a naphthalene nucleus, or a 5 to 7 membered heterocyclic ring; and
- (d) j is a positive integer of 1 to 2 and is 2 when D is OR.sup.4 or when R.sup.5 is hydrogen or alkyl of less than 8 carbon atoms.
- 8. The compound of claim 7 wherein D is OH, j is 2 and Y is a naphthalene nucleus.
- 9. The compound of claim 1 wherein said CAR will release said diffusible 6-arylazo-3-pyridinol magenta dye moiety or precursor thereof as an inverse function of development of a silver halide emulsion layer under alkaline conditions.
- 10. The compound of claim 9 wherein said CAR is a group having the formula: ##STR36## wherein: Ballast is an organic ballasting radical of such molecular size and configuration as to render said compound nondiffusible in a photographic element during said development in an alkaline processing composition;
- W.sup.1 represents at least the atoms necessary to complete a quinone nucleus;
- r is a positive integer of 1 or 2;
- R.sup.6 is alkyl having 1 to about 40 carbon atoms or aryl having 6 to about 40 carbon atoms; and
- k is a positive integer of 1 to 2 and is 2 when R.sup.6 has less than 8 carbon atoms.
- 11. The compound of claim 9 wherein said CAR is a group having the formula: ##STR37## wherein: Ballast is an organic ballasting radical of such molecular size and configuration as to render said compound nondiffusible in a photographic element during said development in an alkaline processing composition;
- W.sup.2 represents at least the atoms necessary to complete a benzene nucleus; and
- R.sup.7 is alkyl having 1 to about 4 carbon atoms.
- 12. The compound of claim 9 wherein said CAR is a group having the formula: ##STR38## wherein: Ballast is an organic ballasting radical of such molecular size and configuration as to render said compound nondiffusible in a photographic element during said development in an alkaline processing composition;
- W.sup.2 represents at least the atoms necessary to complete a benzene nucleus; and
- R.sup.7 is alkyl having 1 to about 4 carbon atoms.
- 13. The compound of claim 9 wherein said CAR is a group having the formula: ##STR39## wherein: Ballast is an organic ballasting radical of such molecular size and configuration as to render said compound nondiffusible in a photographic element during said development in an alkaliine processing composition;
- W.sup.2 represents at least the atoms necessary to complete a benzene nucleus;
- r is a positive integer of 1 or 2;
- R.sup.6 is alkyl having 1 to about 40 carbon atoms or aryl having 6 to about 40 carbon atoms;
- k is a positive integer of 1 to 2 and is 2 when R.sup.6 has less than 8 carbon atoms; and
- K is OH or a hydrolyzable precursor thereof.
- 14. The compound of claim 1 wherein said dye-releasing compound is: ##STR40##
- 15. The compound of claim 1 wherein said dye-releasing compound is: ##STR41##
- 16. The compound of claim 1 wherein said dye-releasing compound is: ##STR42## wherein R is: ##STR43##
Parent Case Info
This is a division of application Ser. No. 174,406 filed Aug. 1, 1980 now U.S. Pat. No. 4,287,292, issued Sept. 1, 1981.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1445797 |
Aug 1976 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
174406 |
Aug 1980 |
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