Pivalyl-acetanilide couplers and photographic elements including

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...

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430389, 430226, G03C 140, G03C 700

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active

041826302

ABSTRACT:
Two-equivalent pivalylacetanilide couplers having attached to the reactive methylene thereof a 5-membered (simple) or 6-membered (simple or condensed) heterocyclic nucleus through nitrogen atoms respectively in 1 position and 3 position thereof, said 5-membered nucleus including nitrogen atoms in 2 and 4 positions respectively bonded through double bonds to carbon atoms in 3 and 5 positions thereof and said 6-membered heterocyclic nucleus being chosen within the class including 1,2,3-benzotriazine-4-(3H)-one, 1,3-benzodiazine-4-(3H)-one and pyrimidine-4-(3H)-one nucleus.

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patent: 3933500 (1976-01-01), Shiba et al.
patent: 4049458 (1977-09-01), Boie et al.

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