K. M. Turdybekov, S. M. Adekenov, V. A. Raldugin, Z. M. Muldakhmetov, Yu. T. Struchkov, “Conformation of the α-Methylene-γ-lactone Ring and Violation of Geissman's Rule in Sesquiterpene Lactones”, Mendeleev Commun., 1995, Volume 5, Issue 2,Pages <nobr>42

Conformation of the α-Methylene-γ-lactone Ring and Violation of Geissman's Rule in Sesquiterpene Lactones

K. M. Turdybekov^a, S. M. Adekenov^b, V. A. Raldugin^c, Z. M. Muldakhmetov^b, Yu. T. Struchkov^a

^a A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, Russian Federation
^b Institute of Organic Synthesis and Coal Chemistry of the Republic of Kazakhstan, Karaganda, Kazakhstan
^c N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation

Abstract: The dependence of the C=C–C=O group chirality on the conformation of the α-methylene-γ-lactone ring in sesquiterpene lactones has been established; the known cases in which Geissman's rule is violated are explained by inversion of this ring.

Language: English

DOI: 10.1070/MC1995v005n02ABEH000449