Silver halide photographic light-sensitive material containing a compound capable of imagewise releasing a photographically useful group during development

Claim 2

A silver halide photographic material comprising a support and at least one silver halide emulsion layer formed thereon, in which said emulsion layer or other layer contains a compound represented by formula (I) ##STR83## wherein X represents an atomic group capable of releasing (Time) t PUG by undergoing an oxidation-reduction reaction with CA═CR 1 --CR 2 ) n C B ; C A and C B each represents a carbon atom; n represents an integer of 0, 1, 2, or 3; R 1 and R 2 each a hydrogen atom or a group substitutable for a hydrogen atom; EWG represents an electron withdrawing group having a Hammett's σ para value greater than 0.3; --Time) t PUG represents a group bonded to C B through an oxygen atom thereof; Time represents a timing group; t represents 0 or 1; and PUG represents a photographically useful group.

Claim 3

A silver halide photographic material as in claim 1, wherein X, including showing the bonding to the C A ═CR 1 --CR 2 ) n C B group, is selected from the groups ##STR84## wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 each represents a hydrogen atom, a substituted or unsubstituted alkyl group having from 1 to 30 carbon atoms, a substituted or unsubstituted aromatic group having from 6 to 30 carbon atoms, a substituted or unsubstituted alkylthio group having from 1 to 30 carbon atoms, a substituted or unsubstituted arylthio group having from 6 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having from 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy group having from 6 to 30 carbon atoms, a substituted or unsubstituted amino group having from 1 to 30 carbon atoms, a substituted or unsubstituted amido group having from 1 to 30 carbon atoms, a substituted or unsubstituted sulfonamido group having from 1 to 30 carbon atoms, a substituted or unsubstituted alkoxycarbonylamino group having from 1 to 30 carbon atoms, a substituted or unsubstituted ureido group having from 1 to 30 carbon atoms, a substituted or unsubstituted carbamoyl group having from 1 to 30 carbon atoms, a substituted or unsubstituted alkoxycarbonyl group having from 1 to 30 carbon atoms, a substituted or unsubstituted sulfamoyl group having from 1 to 30 carbon atoms, a substituted or unsubstituted sulfonyl group having from 1 to 30 carbon atoms, a cyano group, a haogen atom, a substituted or unsubstituted acyl group having from 1 to 30 carbon atoms, a carboxy group, a sulfo group, a nitro group, a heterocyclic ring residue having at most 30 carbon atoms, a sulfur residue bonded to a heterocyclic ring having at most 30 carbon atoms; cr R 1 and R 2 , R 3 and R 4 , R 4 and R.sub. 5, or R 5 and R 6 combine with each other to form a saturated or unsaturated carbocyclic ring or a saturated or unsaturated heterocyclic ring; and R 7 represents a substituted or unsubstituted sulfonyl group having from 1 to 30 carbon atoms, or a substituted or unsubstituted acyl group having from 1 to 30 carbon atoms.

Claim 4

A silver halide photographic material as in claim 2, wherein X, including showing the bonding to the C A ═CR 1 --CR 2 ) n C B group, is selected from a group consisting of ##STR85## wherein R 3 , R 4 , R 5 , R 6 , and R 7 are the same as defined in claim 2.

Claim 5

A silver halide photographic material as in claim 2, wherein X, including showing the bonding to the C A ═CR 1 --CR 2 ) n C B group, is selected from a group consisting of ##STR86## wherein R 3 , R 4 , R 5 , and R 6 , are the same as defined in claim 2.

Claim 6

A silver halide photographic material as in claim 2, wherein R 7 represents a sulfonyl group.

Claim 7

A silver halide photographic material as in claim 3, wherein R 7 represents a sulfonyl group.

Claim 8

A silver halide photographic material as in claim 1, wherein the compound of formula (I) is present in an amount of from 1×10 -7 mole to 1×10 3 mole per mole of silver halide.

Claim 9

A silver halide photographic material as in claim 2, wherein the compound of formula (I) is present in an amount of from 1×10 -7 mole to 1×10 3 mole per mole of silver halide.

Claim 10

A silver halide photographic material as in claim 3, wherein the compound of formula (I) is present in an amount of from 1×10 -7 mole to 1×10 3 mole per mole of silver halide.

Claim 11

A silver halide photographic material as in claim 4, wherein the compound of formula (I) is present in an amount of from 1×10 -7 mole to 1×10 3 mole per mole of silver halide.

Claim 12

A silver halide photographic material as in claim 5, wherein the compound of formula (I) is present in an amount of from 1×10 -7 mole to 1×10 3 mole per mole of silver halide.

Claim 13

A silver halide photographic material as in claim 6, wherein the compound of formula (I) is present in an amount of from 1×10 -7 mole to 1×10 3 mole per mole of silver halide.