Syntheses of Heterocyclic Compounds of Nitrogen. LXXXIX: Photosensitizing Dyes. (10)

Twenty-one kinds of aminovinyl compounds were prepared by the condensation of the quaternary salts of 2, 6-lutidine, 2, 4-lutidine, and 2, 4, 6-collidine respectively with p, p′-dicarbethoxy (p, p′-dibromo-, 2, 2′, 4, 4′-tetrachloro-, or p, p′-dimethyl)-diphenylformamidines, α, α′ (or β, β′)-dinaphthylformamidines, and 3, 3′, 5, 5′-tetrachloro-(or tetrabromo)-dipyridyl-(2, 2′)-formamidines.