Photographic light-sensitive sheet for the color diffusion transfer process

Claim 1

A photographic light-sensitive sheet for the color diffusion transfer process which comprises a support having thereon at least one light-sensitive silver halide emulsion layer having associated therewith a compound represented by the following general formula (I): ##STR25## wherein Q 1 represents a hydrogen atom; a halogen atom; a sulfamoyl group represented by the formula --SO 2 NR 3 R 4 wherein R 3 represents a hydrogen atom or an alkyl group, R 4 represents a hydrogen atom or an R 4a group wherein R 4a represents an alkyl group, an aralkyl group or a phenyl group, and R 3 and R 4 may combine directly or through an oxygen atom to form a ring; a group represented by the formula --SO 2 R 5 wherein R 5 represents an alkyl group or an aralkyl group; a carboxy group; a group represented by the formula --COOR 6 wherein R 6 represents an alkyl group or a phenyl group; or a group represented by the formula --CONR 3 R 4 wherein R 3 and R 4 each has the same meaning as defined above; Q 2 is positioned at the 5- or the 8-position to the hydroxy group and represents a hydroxy group, a group represented by the formula --NHCOR 4a or a group represented by the formula --NHSO 2 R 4a wherein R 4a has the same meaning as defined above; G represents a hydroxyl group, a salt thereof, or a hydrolyzable acyloxy group represented by the formula ##STR26## wherein E represents an alkyl group or a phenyl group; R 1 and R 2 , which may be the same or different, each represents an alkyl group; and R 1 and R 2 may combine with each other and represent an atomic group necessary to form a 5-membered or 6-membered heterocyclic ring; m and q each represents 0 or 1; J represents a sulfonyl group or a carbonyl group; Z represents a hydrogen atom or an alkyl group; X represents a divalent bonding group represented by the formula --A 1 --L n --A 2 ) p wherein A 1 and A 2 , which may be the same or different, each represents an alkylene group, an aralkylene group, a phenylene group or a substituted phenylene group; L represents a divalent group selected from the group consisting of an oxy group, a carbonyl group, a carboxyamido group, a carbamoyl group, a sulfonamido group, a sulfamoyl group, a sulfinyl group and a sulfonyl group, and p and n each represents 0 or 1; and the group represented by the formula Y--NHSO 2 -- is a redox center which functions to release a diffusible dye as a result of self cleavage due to oxidation with Y representing a carboxylic ring containing at least one unsaturated double bond and a ballast group and substituted with (a) a hydroxy group or a precursor thereof or (b) an amino group, the substitution of said hydroxy group or said amino group being at the position ortho or para to the SO 2 NH-- group.