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Communication | Regular issue | Vol 36, No. 12, 1993, pp.2669-2672
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6513
Structure of the endo 1:1 Adduct by Asymmetric Cycloaddition Reactions of Optically Active (R)-Allene-1,3-dicarboxylate with Furan: Determination of Its Absolute Configuration by X-Ray Analysis

Izumi Ikeda, Akie Gondo, Motoo Shiro, and Ken Kanematsu*

*Institute of Synthetic Organic Chemistry, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan

Abstract

Asymmetric Diels-Alder reactions of optically active (R)-allene-1,3-dicarboxylate with furan in the presence of Lewis acid proceeded to afford the endo-adduct selectively in moderate yield. The absolute configuration of the adduct was confirmed by X-ray analysis.