Novel blocked phenylenediamine developers for a color photographic element

A light sensitive color photographic imaging element comprising at least one blocked developing agent having the following structure:

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• wherein,
• DEV is a silver-halide color developing agent;
• LINK 1 and LINK 2 are linking groups;
• TIME is a timing group;
• is 0 or 1;
• m is 0, 1, or 2;
• n is 0 or 1;
• 1+n is 1 or 2;
• B is a blocking group or B is:
• —B′—(LINK 2)n-(TIME)m-(LINK 1)1-DEV
• wherein B′ also blocks a second developing agent DEV;
• wherein the blocked developer liberates a developing agent within the following structure:
• A-(CR1═CR2)n—NHY
• wherein:
• n is 0, 1 or 2;
• A is OH, or NR3R4;
• Y is H, or a group that cleaves before or during a coupling reaction to form YH;
• and R1 R2, R3 and R4, which can be the same or different are individually H, alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, substituted aryl, halogen, cyano, alkoxy, substituted alkoxy, aryloxy, substituted aryloxy, amino, substituted amino, alkylcarbonamido, substituted alkylcarbonamido, arylcarbonamido, substituted arylcarbonamido, alkylsulfonamido, arylsulfonamido, substituted alkylsulfonamido, substituted arylsulfonamido, or sulfamyl or wherein at least two of R1 R2, R3 and R4 together can further form a substituted or unsubstituted carbocyclic or heterocyclic ring structure, and
• wherein the blocked developer according to the present invention enables the formation of a cyan colored dye when the oxidized form of the released developer reacts with a coupler having the following structure:
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A light sensitive color photographic imaging element comprising at least one blocked developing agent having the following structure:

• DEV-(LINK 1)1-(TIME)m-(LINK 2)n-B I
• wherein,
• DEV is a silver-halide color developing agent;
• LINK 1 and LINK 2 are linking groups;
• TIME is a timing group;
• 1 is 0 or 1;
• m is 0, 1, or 2;
• n is 0 or 1;
• 1+n is 1 or 2;
• B is a blocking group or B is:
• -B′-(LINK 2)n-(TIME)m-(LINK 1)1-DEV
• wherein B′ also blocks a second developing agent DEV;
• wherein the blocked developer liberates a developing agent within the following structure:
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• wherein R1, R1, R2, R2, R3 and R4 which can be the same or different are individually H, alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, substituted aryl, halogen, cyano, hydroxy, alkoxy, substituted alkoxy, aryloxy, substituted aryloxy, amino, substituted amino, alkylcarbonamido, substituted alkylcarbonamido, arylcarbonamido, substituted arylcarbonamido, alkylsulfonamido, arylsulfonamido, substituted alkylsulfonamido, substituted arylsulfonamido, or sulfamyl or wherein at least two of R1, R1, R2, R2, R3 and R4 together further form a substituted or unsubstituted carbocyclic or heterocyclic ring structure;
• except that neither R1 nor R1 can be H.