Substituted 1-phenyl-3-pyrazolidinone electron transfer agents

Claim 2

In a photographic assemblage to be processed by an alkaline processing composition, said assemblage comprising: (a) a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent; and (b) a dye image-receiving layer; the improvement wherein said assemblage contains as said silver halide electron transfer agent or precursor thereof a compound having the following formula: ##STR13## wherein: R is hydrogen or a hydrolyzable moiety; R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 3

In a photographic assemblage comprising: (a) a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent; (b) a dye image-receiving layer; and (c) an alkaline processing composition and means containing same for discharge within said assemblage; the improvement wherein said assemblage contains as said silver halide electron transfer agent or precursor thereof a compound having the following formula: ##STR14## wherein: R is hydrogen or a hydrolyzable moiety; R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 4

In a photographic assemblage comprising: (a) a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent; (b) a dye image-receiving layer; and (c) an alkaline processing composition and means containing same for discharge within said assemblage; the improvement wherein said assemblage contains as said silver halide electron transfer agent or precursor thereof a compound having the following formula: ##STR14## wherein: R is hydrogen or a hydrolyzable moiety; R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 5

The assemblage of claim 2 wherein R is a hydrolyzable moiety, R 1 is hydrogen, and said electron transfer agent precursor is located in said photographic element.

Claim 6

The assemblage of claim 3 wherein R 2 is hydrogen, R 3 is an alkyl group of 1 to 3 carbon atoms, and R 4 is hydrogen.

Claim 7

The assemblage of claim 4 wherein R 3 is a methyl group.

Claim 8

The assemblage of claim 2 wherein R is hydrogen, R 1 is hydrogen, and said electron transfer agent is located in said alkaline processing composition.

Claim 9

The assemblage of claim 6 wherein R 2 is hydrogen, R 3 is an alkyl group of 1 to 3 carbon atoms, and R 4 is hydrogen.

Claim 10

The assemblage of claim 7 wherein R 3 is a methyl group.

Claim 11

The photographic assemblage of claim 2 wherein said photographic element comprises a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image-providing material, and a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye image-providing material.

Claim 12

The photographic assemblage of claim 2 wherein: (a) said dye image-receiving layer is located between said support and said silver halide emulsion layer; and (b) said assemblage also includes a transparent cover sheet over the layer outermost from said support.

Claim 13

The photographic assemblage of claim 10 wherein said cover sheet has thereon, in sequence, a neutralizing layer and a timing layer.

Claim 14

The photographic assemblage of claim 11 wherein said discharging means is a rupturable container containing said alkaline processing composition and an opacifying agent, said container being so positioned during processing of said assemblage that a compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and the layer outermost from said support.

Claim 15

The photographic assemblage of claim 2 wherein said support having thereon said photosensitive silver halide emulsion layer is opaque and said dye image-receiving layer is located on a separate transparent support superposed over the layer outermost from said opaque support.

Claim 16

The photographic assemblage of claim 13 wherein said transparent support has thereon, in sequence, a neutralizing layer, a timing layer and said dye image-receiving layer.

Claim 17

In an integral photographic assemblage comprising: (a) a photosensitive element comprising a transparent support having thereon the following layers in sequence: a dye image-receiving layer, an alkaline solution-permeable, light-reflective layer, an alkaline solution-permeable, opaque layer, a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image-providing material, and a blue-sensitive silver halide emulsion layer having associated therwith a yellow dye image-providing material, each of said dye image-providing materials comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent; (b) a transparent sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support having thereon, in sequence, a neutralizing layer and a timing layer; and (c) a rupturable container containing an alkaline processing composition and an opacifying agent which is so positioned during processing of said assemblage that a compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and said blue-sensitive silver halide emulsion layer; the improvement wherein said assemblage contains as said silver halide electron transfer agent or precursor thereof a compound having the following formula: ##STR15## wherein: R is hydrogen or a hydrolyzable moiety; R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 18

In an integral photographic assemblage comprising: (a) a photosensitive element comprising a transparent support having thereon the following layers in sequence: a dye image-receiving layer, an alkaline solution-permeable, light-reflective layer, an alkaline solution-permeable, opaque layer, a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image-providing material, and a blue-sensitive silver halide emulsion layer having associated therwith a yellow dye image-providing material, each of said dye image-providing materials comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent; (b) a transparent sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support having thereon, in sequence, a neutralizing layer and a timing layer; and (c) a rupturable container containing an alkaline processing composition and an opacifying agent which is so positioned during processing of said assemblage that a compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and said blue-sensitive silver halide emulsion layer; the improvement wherein said assemblage contains as said silver halide electron transfer agent or precursor thereof a compound having the following formula: ##STR15## wherein: R is hydrogen or a hydrolyzable moiety; R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 19

In a process for producing a photographic image in color in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent, said process comprising: treating said element with an alkaline processing composition in the presence of a silver halide electron transfer agent to effect development of each exposed silver halide emulsion layer, whereby: (a) an imagewise distribution of said dye is formed as a function of said development of said silver halide emulsion layer; and (b) at least a portion of said imagewise distribution of said dye diffuses out of said element, the improvement wherein said silver halide electron transfer agent has the following formula: ##STR16## wherein: R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 20

In a process for producing a photographic image in color in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent, said process comprising: treating said element with an alkaline processing composition in the presence of a silver halide electron transfer agent to effect development of each exposed silver halide emulsion layer, whereby: (a) an imagewise distribution of said dye is formed as a function of said development of said silver halide emulsion layer; and (b) at least a portion of said imagewise distribution of said dye diffuses out of said element, the improvement wherein said silver halide electron transfer agent has the following formula: ##STR16## wherein: R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 21

The process of claim 16 wherein R 1 is hydrogen R 2 is hydrogen, R 3 is an alkyl group of 1 to 3 carbon atoms, and R 4 is hydrogen.

Claim 22

The process of claim 17 wherein R 3 is a methyl group.

Claim 23

The process of claim 16 wherein said imagewise distribution of said dye diffuses to a dye image-receiving layer.

Claim 24

The process of claim 16 wherein said photographic element comprises a support having thereon a red-sensitive silver halide emulsion layer having a cyan dye image-providing material associated therewith, a green-sensitive silver halide emulsion layer having a magenta dye image-providing material associated therewith, and a blue-sensitive silver halide emulsion layer having a yellow dye image-providing material associated therewith.

Claim 25

In a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent, the improvement wherein said element contains a precursor of said silver halide electron transfer agent comprising a compound having the following formula: ##STR17## wherein: R is a hydrolyzable moiety; R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 26

In a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material comprising a ballasted, redox-dye-releasing compound capable of being oxidized by a silver halide electron transfer agent, the improvement wherein said element contains a precursor of said silver halide electron transfer agent comprising a compound having the following formula: ##STR17## wherein: R is a hydrolyzable moiety; R 1 is hydrogen or a hydroxy group; R 2 , R 3 and R 4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO 2 R 5 , --O(CH 2 ) n OR 6 , --(CH 2 ) n OR 6 , --O(CH 2 ) n C 6 H 5 , --(CH 2 ) n R 7 or --O(CH 2 ) n R 7 ; R 5 is hydrogen or an alkyl group of 1 to 3 carbon atoms; R 6 is hydrogen or a methyl group; R 7 is NHSO 2 R 5 or SO 2 NHR 5 ; and n is a positive integer of 1 to 2; with the proviso that at least one of said R 2 , R 3 and R 4 must be one of said groups other than hydrogen.

Claim 27

The photographic element of claim 21 wherein R 1 is hydrogen, R 2 is hydrogen, R 3 is an alkyl group of 1 to 3 carbon atoms, and R 4 is hydrogen.

Claim 28

The photographic element of claim 22 wherein R 3 is a methyl group.

Claim 29

The photographic element of claim 21 wherein said photographic element comprises a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image-providing material, and a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye image-providing material.