Photographic element containing pyrroloylacetamide yellow couple

Details Photographic element containing pyrroloylacetamide yellow couple Photographic element containing pyrroloylacetamide yellow couple

1996-06-24

1997-10-07

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430389, 430556, 430557, G03C 736

Patent

active

056746679

ABSTRACT:
The present invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler of formula (I): ##STR1## wherein X is H or a coupling-off group, R and R.sup.1 are independently selected from H and substituent groups; Y and Z are independently selected from H and alkyl, aryl or heteroaryl groups; provided that Y and Z taken together with the nitrogen atom may form a 5-10 membered heterocyclic ring group which may contain one or more further heteroatoms selected from N, O and S.

REFERENCES:
patent: 5066576 (1991-11-01), Ichijima et al.

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