(4aS,4bR,7R,10aS)-3,7-Dimethyl-10a-(propan-2-yl)-1,4,4a,4b,5,6,7,8,10,10 a-decahydrophenanthrene-1,4-dione

Document Type

Article

Publication Date

1-1-2011

Abstract

In the title compound, C(19)H(26)O(2), the A ring adopts a chair conformation, whereas the B and C rings both adopt distorted half-chair conformations with the quaternary C atom common to both rings lying 0.577 (3) and 0.648 (3) angstrom out of the approximate plane defined by the remaining five C atoms (r.m.s. deviations = 0.1386 and 0.1156 angstrom) for the B and C rings, respectively. Molecules are assembled in the crystal through C-H center dot center dot center dot O interactions involving both carbonyl O atoms, which lead to supramolecular chains aligned along the b axis.

Publication Title

Acta Crystallographica Section E: Structure Reports Online

Volume

67

Issue

12

Publisher

International Union of Crystallography

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