REACTIVITY OF PHOSPHORYLATED PENTADIENYLIUM SALTS TOWARDS ISOCYANIDES: SYNTHESIS OF AMINOPYRIDINE PHOSPHONIUM SALTS

Abstract

Abstract New cyanines dyes with phosphaimino substituents though engaged in delocalized system react with mono or diisocyanides in an aza-Wittig like reaction to give α-aminopyridines with phosphonium side chain. The final structure was determined by X ray.