Silver halide photographic light-sensitive material

Details Silver halide photographic light-sensitive material Silver halide photographic light-sensitive material

1994-12-06

1996-09-24

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548156, C07D27784, C07D27762

Patent

active

055592406

ABSTRACT:
A silver halide photographic light-sensitive material contains a methine compound represented by the following formula: ##STR1## wherein Y.sup.1 is a group which is clearable by a nucleophile; Z.sup.1 is --O--, --S-- or other; Z.sup.2 is --S--; A and B are each independently hydrogen, halogen, alkyl, aryl or a heterocyclic group; A and B may be linked to each other to form an unsaturated aliphatic ring or an aromatic ring; and Q.sup.1 is a methine or polymethine group which may have a heterocyclic group. A novel methine compound is also disclosed.

REFERENCES:
patent: 2231658 (1941-02-01), Brooker et al.
Chemical Abstracts vol. 117:223091r (1992).

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