J. Thanusu, V. Kanagarajan, M. Gopalakrishnan
Mar 1, 2012
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Journal
Green Chemistry Letters and Reviews
Abstract
In the present work, a new series of novel 7,9-diaryl-1,4-diazaspiro[4.5]-deca-9-ene-6-ethyl carboxylates 11–20 was synthesized by the reaction of 6-carbethoxy-3,5-diarylcyclohex-2-enones 1–10 with ethylene diamine in the presence of p-toluenesulfonic acid (p-TSA) in solvent-free conditions under focused microwave irradiation (MWI) and were characterized by melting point, elemental analysis, MS, FT-IR, one-dimensional NMR (1H, D2O exchanged 1H & 13C), and two-dimensional Heteronuclear Multiple Quantum Coherence (HMQC) spectroscopic data.