Aza-Michael Additions on α, β-Unsaturated Esters Catalysed by Bismuth (III) Triflate in Conventional Chemistry and Under Microwave Irradiation

Jeremy      Monfray; Ari   M.P.   Koskinen

doi:10.2174/157017806776114496

Abstract

Aza-Michael additions are an easy way to prepare β-aminoesters. This reaction was investigated in the presence of catalytic amounts of bismuth (III) triflate under conventional and microwave irradiation conditions. It was shown that combination of both the catalyst and microwave irradiation under solvent-free conditions enhances the conjugate addition of amines to α,β-unsaturated esters.

Keywords: Bismuth triflate, michael addition, microwave synthesis, α,β-unsaturated ester

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Letters in Organic Chemistry

Title: Aza-Michael Additions on α, β-Unsaturated Esters Catalysed by Bismuth (III) Triflate in Conventional Chemistry and Under Microwave Irradiation

Volume: 3 Issue: 4

Author(s): Jeremy Monfray and Ari M.P. Koskinen

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Keywords: Bismuth triflate, michael addition, microwave synthesis, α,β-unsaturated ester

Abstract: Aza-Michael additions are an easy way to prepare β-aminoesters. This reaction was investigated in the presence of catalytic amounts of bismuth (III) triflate under conventional and microwave irradiation conditions. It was shown that combination of both the catalyst and microwave irradiation under solvent-free conditions enhances the conjugate addition of amines to α,β-unsaturated esters.

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Monfray Jeremy and Koskinen M.P. Ari, Aza-Michael Additions on α, β-Unsaturated Esters Catalysed by Bismuth (III) Triflate in Conventional Chemistry and Under Microwave Irradiation, Letters in Organic Chemistry 2006; 3 (4) . https://dx.doi.org/10.2174/157017806776114496