A convenient synthesis of 3-arylideneindolin-2-ones and evaluation of their photoelectrochemical properties

Abstract

: An eco-friendly synthesis of 3-arylideneindolin-2-ones was achieved by reacting indolin-2-one with aryl aldehydes under acid catalyzed condition in ethanol medium. The ( E )-isomers were obtained as the major products in a few minutes, at reflux temperature of the solvent. Examination of the synthesized compounds revealed interesting photoelectrochemical properties, and offered the possibility of developing them as molecular photoactive materials in photoconversion devices.