Photographic acyl acetanilide color couplers with 2,5-dioxo-1-imidazolidinyl coupling off groups

Claim 2

A process for forming yellow-dye image of light-sensitive color photographic materials, characterized in developing an imagewise-exposed, light-sensitive silver halide color photographic material, by use of a developer, in the presence of at least one compound of the general formula: ##STR18## wherein A is a residue formed by removing one of the hydrogen atoms of the active methylene group of an active methylene group-containing yellow image-forming coupler of the acyl acetanilide type; X is a hydrogen atom, or an alkyl, acyl, carboxymethyl, alkoxycarbonylmethyl, carbamylmethyl, aryl, aralkyl, nitro or amino group; and Y and Z are individually a hydrogen atom, or an alkyl, ureido, aryl, aralkyl, benzylidene, styryl or anilino group.

Claim 3

A process for forming yellow-dye images of light-sensitive color photographic materials as claimed in claim 1, wherein said compound is at least one member selected from the group consisting of α-(2,5-dioxo-1-imidazolidinyl)-α-pivalyl-acetanilide, α-(2,5-dioxo-1-imidazolidinyl)-α-(p-octadecyloxybenzoyl)-2-methoxyacetanilide, α-(2,5-dioxo-1-imidazolidinyl)-α-pivalyl-2-chloro-5γ(2,4-di-t-amylphenoxy)-butyramidoacetanilide, α-[3-(2-ethylhexyl)-2,5-dioxo-1-imidazolidinyl]-α-pivalyl-2,5-dichloroacetanilide, α-(3-phenyl-2,5-dioxo-1-imidazolidinyl)-α{3-(2,4-di-t-amylphenoxy)butyramido]-benzoyl}-2-methoxy-acetanilide, α-(3-phenyl-2,5-dioxo-1-imidazolidinyl)-α-pivalyl-2-chloro-5-[γ-(2,4-di-t-amylphenoxy)-butyramidoacetanilide, α-(3-benzyl-2,5-dioxo-1-imidazolidinyl)-α-pivalyl-acetanilide, α-(3-methyl-2,5-dioxo-1-imidazolidinyl)-α-pivalyl-acetanilide, α-(3-acetyl-2,5-dioxo-1-imidazolidinyl)-α-benzolyl-2-chloro-5-[1-(n-dodecyloxycarbonyl)ethoxycarbonyl]-acetanilide, α-[3-p-chlorophenyl)-4,4-dimethyl-2,5-dioxo-1-imidazolidinyl]-.alpha.-pivalyl-2,5-dichloroacetanilide, α-[4-(p-methylbenzyl)-2,5-dioxo-1-imidazolidinyl]-α-(p-octadecyloxybenzoyl)-3,5-dicarboxyacetanilide dipotassium salt, α-[3-(p-ethoxyphenyl)-4-phenyl-2,5-dioxo-1-imidazolidinyl]-α-pivalyl-acetanilide, α,α'-(2,4,2',4'-tetraoxo-1,5'-biimidazolidine-3,3'-diyl)-bis-(α-pivalyl-2,5-dichloroacetanilide), α-(4-ureido-2,5-dioxo-1-imidazolidinyl)-α-pivalyl-acetanilide, α-(3-methyl-2,5-dioxo-1-imidazolidinyl)-α-pivalyl-2-chloro-5-[γ-(2,4-di-t-amylphenoxy)-butylamido]-acetanilide and α-(4-methyl-3-ethoxycarbonylmethyl-2,5-dioxo-1-imidazolidinyl)-.alpha.-(o-methoxybenzoyl)-3,5-dicarboxyacetanilide dipotassium salt.

Claim 4

A light-sensitive silver halide color photographic material which comprises a support and carried thereon an yellow color image-forming layer comprising a compound of the general formula ##EQU2## wherein A is a residue formed by removing one of the hydrogen atoms of the active methylene group of an active methylene group-containing yellow image-forming coupler of the acyl acetanilide type; X is a hydrogen atom, or an alkyl, acyl, carboxymethyl, alkoxycarbonylmethyl, carbamylmethyl, aryl, aralkyl, nitro or amino group; and Y and Z are individually a hydrogen atom, or an alkyl, ureido, aryl, aralkyl, benzylidene, styryl or anilino group.

Claim 5

A light-sensitive silver halide color photographic material which comprises a support and carried thereon an yellow color image-forming layer comprising a compound of the general formula ##EQU2## wherein A is a residue formed by removing one of the hydrogen atoms of the active methylene group of an active methylene group-containing yellow image-forming coupler of the acyl acetanilide type; X is a hydrogen atom, or an alkyl, acyl, carboxymethyl, alkoxycarbonylmethyl, carbamylmethyl, aryl, aralkyl, nitro or amino group; and Y and Z are individually a hydrogen atom, or an alkyl, ureido, aryl, aralkyl, benzylidene, styryl or anilino group.

Claim 6

A developer for light-sensitive silver halide color photographic materials which comprises a p-phenylenediamine type developing agent and a compound of the general formula ##STR19## wherein A is a residue formed by removing one of the hydrogen atoms of the active methylene group of an active methylene group-containing yellow image-forming coupler of the acyl acetanilide type; X is a hydrogen atom, or an alkyl, acyl, carboxymethyl, alkoxycarbonylmethyl, carbamylmethyl, aryl, aralkyl, nitro or amino group; and Y and Z are individually a hydrogen atom, or an alkyl, ureido, aryl, aralkyl, benzylidene, styryl or anilino group.

Claim 7

A developer for light-sensitive silver halide color photographic materials which comprises a p-phenylenediamine type developing agent and a compound of the general formula ##STR19## wherein A is a residue formed by removing one of the hydrogen atoms of the active methylene group of an active methylene group-containing yellow image-forming coupler of the acyl acetanilide type; X is a hydrogen atom, or an alkyl, acyl, carboxymethyl, alkoxycarbonylmethyl, carbamylmethyl, aryl, aralkyl, nitro or amino group; and Y and Z are individually a hydrogen atom, or an alkyl, ureido, aryl, aralkyl, benzylidene, styryl or anilino group.

Claim 8

A process for forming yellow-dye image of light-sensitive color photographic materials according to claim 1, wherein said compound is incorporated into the light-sensitive color photographic material.

Claim 9

A process for forming yellow-dye image of light-sensitive color photographic materials according to claim 1, wherein said compound is incorporated into the developer.