ABSTRACT
Biologically active substituted 1,4-dihydropyridines have been synthesized in excellent yields by the reaction of aldehydes, ethyl or methyl acetoacetic ester and ammonium acetate under microwave irradiation (MWI) within 0.75–3 min.
ACKNOWLEDGMENT
One of the authors (M.A.) is grateful to Council of Scientific and Industrial Research, New Delhi, India for financial support.