Silver halide light-sensitive material containing a compound rel

Details Silver halide light-sensitive material containing a compound rel Silver halide light-sensitive material containing a compound rel

1988-12-19

1991-02-19

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430223, 430544, 430559, 430598, 430955, 430956, 430957, 430958, 430959, G03C 108

Patent

active

049943634

ABSTRACT:
A novel silver halide light-sensitive material is provided, comprising a compound represented by the general formula (I): ##STR1## wherein EAG represents an aromatic group which receives electrons from a reducing substance; R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents an electrophilic group, with the proviso that R.sup.1 and R.sup.2 may be in the position of cis or trans to each other; R.sup.3 and R.sup.4 each represents hydrogen atom or a hydrocarbon group; ETG represents a group capable of transferring electrons; e represents an integer 0 or 1; Time represents a group which undergoes reaction triggered by the cleavage from the carbon carrying R.sup.3 and R.sup.4 to release PUG; t represents an integer 0 or 1; and PUG represents a photographically useful group.
In a preferred embodiment, R.sup.1 represents an aromatic group, heterocyclic group or group represented by --Y.sup.1 --R.sup.5 in which Y.sup.1 represents a hetero atom or hetero atomic group and R.sup.5 represents hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group. R.sup.2 represents an acyl group, carbamoyl group, alkoxycarbonyl group, cyano group, sulfonyl group or nitro group. R.sup.1 is a group represented by --Y.sup.1 --Y.sup.2 --R.sup.6 in which Y.sup.1 and Y.sup.2 each represents a hetero atom or hetero atomic group and may be the same or different and R.sup.6 represents hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group.

REFERENCES:
patent: 4186012 (1980-01-01), Odenwalder

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