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Microwave assisted synthesis and characterization of novel hydrazone derivatives

Kavita, Pramila Joshi, Yogesh Chandra Joshi

A simple and efficient method has been developed for the synthesis of Oalkyl alkyl-1-(4-substituted benzylidene) phosphonohydrazone derivatives (3a-j) using silica supported microwave irradiation technique under solvent free conditions. The series of phosphonohydrazone derivatives were synthesized by the condensation reaction of O-alkyl alkylphosphorohydrazides (1a-e) with substituted benzaldehydes. The synthesized compounds were structurally confirmed by elemental analysis, FT-IR, 1H NMR and mass spectroscopy.