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Communication | Regular issue | Vol 26, No. 12, 1987, pp.3093-3096
Published online, 1st January, 1970
DOI: 10.3987/R-1987-12-3093
A New Route to Quassin Basic Skeleton via Allenecarboxylate Intramolecular Cycloaddition

Mitsutaka Yoshida and Ken Kanematsu

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


The new route to quassin basic skeleton, tetracyclic lactones has been realized via the intramolecular Diels-Alder reaction of allene-1,3-dicarboxylates.