COLOR PHOTOGRAPHIC MATERIAL AND A PROCESS FOR THE PRODUCTION OF YELLOW IMAGES USING 2-EQUIVALENT YELLOW COUPLERS

摘要

1434472 Amides AGFA-GEVAERT AG 21 March 1974 [21 March 1973] 12564/74 Heading C2C [Also in Division G2] A photographic yellow coupler of the formula is prepared by heatingα-(2-ethoxycarbonyl-4- methyl - phenoxy) - 2 - chloro - 4 - hexadecyloxy-acetanilide in absolute benzene and sodium methylate solution.α-(2-Ethoxy-carbonyl-4- methyl - phenoxy) - 2 - chloro - 4 - hexadecyloxyacetanilide is prepared by heating 6-hydroxy-3- methyl-benzoic acid ethyl ester and 2-chloro-4- hexadecyloxy -α- bromoacetanilide in absolute ethanol and sodium methylate solution. 6 - Hydroxy - 3 - methyl - benzoic acid ethyl ester is prepared by adding hydrochloric acid to an ethanolic solution of 6-hydroxy-3-methyl-benzoic acid. A photographic yellow coupler of the formula is prepared similarly.