Synthesis, structure, and photochemical properties of hetarylaldehydes benzimidazolyl-2-hydrazones

Abstract

New benzimidazolyl-2-hydrazones of 2-furaldehyde, thiophene-2-carbaldehyde and pyridine-2-carbaldehyde were synthesized and their structure was studied by 1 ? NMR and X-ray analysis. Photochemical properties of these compounds and of benzothiazolyl-2-hydrazones of 2-furaldehyde, thiophene-2-carbaldehyde and pyridine-2-carbaldehyde in solutions were investigated. The process of phototransformation is determined by the nature of the aldehyde fragment of hydrazones. © Pleiades Publishing, Ltd., 2010