Preparation and Some Reactions of 1,4-Diaryl-1,3-Butadiene-2,3-Dicarboxaldebyde.

Abstract

We have succeeded to prepare 1,4-bis-(4-nitrophenyl, 2-chlorophenyl
or 1-styryl)-1,3-butadiene-2,3-dicarboxaldehyde (IIIa-c) by condensation
of the appropriate aromatic aldehyde with 1,4-butandial (II) in the
presence of AcOH/AcOK. Also reduction and oxidation of compounds
(IIIa & b) have been studied to give the hydroxy methyl derivatives
(IVa & b) and the acid derivatives (Va & b) respectively. Cyclization of
the acids (Va & b) yielded the anhydrides (VIa & b).