Collect. Czech. Chem. Commun. 1979, 44, 2101-2107

Derivatives of pivaloylacetanilide

Josef Koříneka, Jaroslav Poskočila, Josef Arientb and Jarmila Janošováb

a Institute of Chemical Technology, 532 10 Pardubice
b Research Institute of Photographic Chemistry, Fotochema, 500 00 Hradec Králové


The azomethine dyestuffs prepared in gelatine layer chromogeneous development of the couplers based on 4,4-dimethyl-3-oxo-N-phenylpentanamide (I to XVII) and 4,4-dimethyl-3-oxo-N-(sulphamoylphenyl)pentanamide (XXI to XXVII) have been found to have better light fastness than the correspondingly substituted dyestuffs based on 3-oxo-3-N-diphenylpropanamide (XVIII to XX). Spectral characteristics of the dyestuffs are given and preparation of the derivatives XXI to XXVII is described.