(22E,24R)-5α-Ergosta-2,22-dien-6-one

In the title mol-ecule, C(28)H(44)O, two six-membered rings have regular chair conformations, while the six-membered ring containing the C=C double bond exhibits a distorted chair conformation. The five-membered ring adopts an envelope conformation. In the crystal, weak inter-molecular C-H⋯O inter-a...

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Bibliographic Details
Published in:Acta crystallographica. Section E, Structure reports online Structure reports online, 2011-01, Vol.67 (Pt 2), p.o507-o507
Main Authors: Sheng, Liu-Qing, Zeng, Fang, Chen, Fei, Xia, Chun-Nian
Format: Article
Language:English
Subjects:
Organic Papers
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Summary:In the title mol-ecule, C(28)H(44)O, two six-membered rings have regular chair conformations, while the six-membered ring containing the C=C double bond exhibits a distorted chair conformation. The five-membered ring adopts an envelope conformation. In the crystal, weak inter-molecular C-H⋯O inter-actions link mol-ecules into chains along the b axis. The absolute configuration was assigned to correspond with that of the known chiral centres in a precursor mol-ecule.
ISSN:1600-5368
1600-5368
DOI:10.1107/S1600536811002388