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Communication | Regular issue | Vol 14, No. 4, 1980, pp.429-432
Published online, 1st January, 1970
DOI: 10.3987/R-1980-04-0429
CD Study of Guaianolide Sesquiterpenes Having 8-Fused Lactone; The Absolute Configuration of Helenium Lactone and Pleniradin

Fumio Hamada, Tomihisa Ohta, and Shigeo Nozoe*

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan

Abstract

9,10-Saturated and unsaturated guaianolide sesquiterpenes having cis- and trans-8-fused α-methylene-γ-lactone were prepared and those CD’s have been studied to complement the rule by Geissman et al.