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

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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

Document Type: Research Article


Affiliations: Laboratory of Organic Chemistry, Helsinki University of Technology, PO Box 6100, FI-02015 TKK, Finland.

Publication date: 2006-04-01

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  • Letters in Organic Chemistry publishes original letters on all areas of organic chemistry including synthesis, bioorganic, medicinal, natural products, organometallic, supramolecular, molecular recognition and physical organic chemistry. The emphasis is placed on publishing quality papers very rapidly. Letters are processed rapidly and take full advantage of the Internet technology both for the submission and the review of the manuscripts.
    The journal is essential reading for all organic chemists both in academia and industry.
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