Process for the production of 2-equivalent yellow couplers

Details Process for the production of 2-equivalent yellow couplers Process for the production of 2-equivalent yellow couplers

1976-10-06

1979-01-09

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

96100R, 96100N, 548343, 548321, 260326N, 260559T, 544287, 544286, 546142, C07D25308, G03C 140

Patent

active

041339550

ABSTRACT:
A one-stage process for the production of a 2-equivalent acylacetamide yellow coupler, in which one hydrogen atom of the .alpha.-methylene group of the acyl acetamide coupler molecule is substituted by a group which is attached through an oxygen or nitrogen atom and which can be split off during chromogenic development with an oxidized color developer containing a primary aromatic amino group, which process is carried out by reacting

REFERENCES:
patent: 3617291 (1971-11-01), Sawdey
patent: 3928040 (1975-12-01), Shimaumura et al.
patent: 3933500 (1976-01-01), Shiba et al.
patent: 4049458 (1977-09-01), Boie et al.
patent: 4057432 (1977-11-01), Fujiwhara et al.

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