Synthesis and Characterization of Some Novel Biphenyl-4- carboxylic Acid (4-Benzylidene-5-oxo-2-subsituted phenyl-4,5-dihydro-imidazol-1-yl)amide

Abstract

Imidazolinone derivatives of 4a-h have been prepared by the condensation of biphenyl-4-carboxylic acid hydrazide (2) with 5-oxazolone derivatives, which were prepared by Erlenmeyer condensation of benzoyl glycine with different aldehydes in presence of sodium acetate and acetic anhydride. The compounds 3a-h was further reacted with biphenyl-4- carboxylic acid hydrazide (2) to give 4a-h in basic condition. The constitution of the products has been supported by IR, ¹H NMR, ¹³C NMR mass spectra and elemental analysis data.