Pivalylacetanilide couplers and photographic elements...

Details Pivalylacetanilide couplers and photographic elements... Pivalylacetanilide couplers and photographic elements...

C - Chemistry, Metallurgy

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C07D 249/10 (2006.01) C07D 239/36 (2006.01) C07D 239/90 (2006.01) C07D 249/08 (2006.01) C07D 249/12 (2006.01) C07D 249/14 (2006.01) C07D 253/08 (2006.01) C07D 521/00 (2006.01) G03C 1/10 (2006.01) G03C 7/305 (2006.01)

Patent

CA 1140793

ABSTRACT OF THE DISCLOSURE Two-equivalent pivalylacetanilide couplers having attached to the reactive methylene thereof a 5-membered (simple) heterocyclic nucleus through a nitrogen atom in 1 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.

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