Syntheses of Heterocyclic Compounds of Nitrogen. C

Photosensitizing Dyes. (16)

Abstract

Nineteen kinds of styryl-type dyes were prepared by the condensation of tertiary salts of 2-methyl-6′-chloro (methoxy, ethoxy) pyrido [2′, 3′:5, 4] thiazoles and γ-picoline with aromatic aldehydes. A kind of styryl-type dye was obtained by the application of salicylaldehyde on bis [4-methylthiazolyl-(2)] methane monomethiodide. Two kinds of aminovinyl compounds were obtained by the fusion of the quaternary salt of 2-methyl-6′-chloro (ethoxy) pyrido [2′, 3′:5, 4] thiazoles with diphenylformamidine.