ISSN: 2249–9504
CAS CODEN: IJPCDX

A CATALYTIC METHOD FOR THE SYNTHESIS OF PYRAZOLONE DERIVATIVES USING HETEROPOLYACIDS AND STUDY OF THE ANTI-BACTERIAL ACTIVITY

Abstract

Author(s): Zaoui A1, Hammal l1, Bennamane N1, Merabtene S2and Nedjar-Kolli B1*

A series of pyrazolone derivative 3was synthesized by following two different procedures: The reaction of 3-acetyldihydrofuran-2(3H)-one 1and thiosemicarbazide derivatives 2 in ethanol without catalyst or from an efficient and improved procedure using Keggin-type heteropolyacid(HPAs). In this case excellent yields and short reaction times were obtained. The synthesizedcompounds 3were screened for their in vitro anti-bacterial activity against 4 bacterial strains

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