Synthesis of Some New Substituted 1,3,5-Triaryl Pyrazolines

Abstract

A series of substituted chalcones were synthesized by the Calaisen-Schmidt
condensation of substituted benzaldehydes and acetophenones. The reaction of these
chalcones with phenyl hydrazine were studied under phase transfer catalysis (PTC)
conditions employing tetrabutyl ammonium iodide (TBAI) as a catalysed to
synthesize 1,3,5-pyrazolines. The structures of all products were elucidated by
physical and spectroscopic methods.