NAPHTHOL DERIVATIVES AND PROCESS FOR PRODUCING THE SAME

摘要

Naphthol derivatives represented by general formula (I), wherein Y and Y' represent each -(CONH)n-X or -COR; X represents phenyl, naphthyl, anthraquinonyl, benzimidazolonyl or carbazolyl; R represents hydroxy, C1-6 alkoxy, halogeno, benzyloxy, phenyloxy or phenacyloxy; R2 represents hydrogen, an alkali metal, C1-6 alkyl, C1-6 acyl or phenylalkyl; Z represents hydrogen, halogeno, or one member selected from the group consisting of nitro, nitroso and amino and either of the naphthalene rings may be substituted thereby; and n represents an integer of 1 or 2; provided that when R is hydroxy, then R2 and Z do not represent hydrogen at the same time. The derivatives are usable as the starting material in the synthesis of dyes, pigments, photosensitive materials, etc.