A Novel Method for Synthesis of 1,4-Dihydropyridines Using Robust Laterite Catalyst under Ultrasonic Irradiation

S.S. Chine1 and C.S. Patil2,*

1Department of Engineering Sciences, SRES' Sanjivani College of Engineering, Kopargaon-423601, India

2Department of Chemistry, Deogiri College, Aurangabad-431005, India

*Corresponding author: E-mail: chabu251962@yahoo.co.in

Abstract

An efficient method for the synthesis of 1,4-dihydropyridine derivatives from various aryl or heteroaryl aldehydes, β-ketoester and ammonium acetate in presence of laterite catalyst in ethanol under ultrasonication is reported. Catalyst study done with wet chemical analysis, FT-IR, XRD, SEM and EDS techniques. The catalyst can be recovered and reused without noticeable loss of activity even after five cycles.

Keywords

Laterite, Wet chemical analysis, Ultrasonication, Heterogeneous catalysis

   View Article PDF File Under a Creative Commons License