title: X-ray investigations of bicyclic alpha-methylene-delta-valerolactones. II. (4aS,8aS)-4a-methyl-3-methyleneperhydrochromen-2-one.
abstract: The title compound, C(11)H(16)O(2), adopts a semifolded conformation with the delta-lactone and cyclohexane rings almost perpendicular to one another. The beta-methyl substituent occupies an axial position with respect to the cyclohexane ring. The delta-lactone moiety adopts a slightly distorted half-chair arrangement, while the cyclohexane ring exists in an almost ideal chair conformation.
authors.affiliation: Institute of Organic Chemistry, Technical University of Łódź, ul. Zeromskiego 116, 90-924 Łódź, Poland.
authors.forename: Henryk
authors.initials: H
authors.lastname: Krawczyk
authors.forename: Marcin
authors.initials: M
authors.lastname: Rliwiński
authors.forename: Wojciech M
authors.initials: WM
authors.lastname: Wolf