3-ALPHA,4-ALPHA-EPOXY-5-ALPHA-ANDROSTAN-17-ONE

Authors
PAIXAO JA SILVA MR DEALMEIDA MJ DASILVA EJT MELO MLSE NEVES ASC
Citation
Ja. Paixao et al., 3-ALPHA,4-ALPHA-EPOXY-5-ALPHA-ANDROSTAN-17-ONE, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 347-349
Citations number
14
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
53
Year of publication
1997
Part
3
Pages
347 - 349
Database
ISI
SICI code
0108-2701(1997)53:<347:3>2.0.ZU;2-C
Abstract
The structure of the title compound, 3 alpha,4 alpha-epoxy-5 alpha-and rostan-17-one, C19H28O2, shows evidence of the strain caused by the pr esence of an epoxy O atom bonded to C3 and C4 in the molecule. Ring A has a sizeable distortion and assumes a conformation intermediate betw een 10-beta-sofa and 1,10-half chair. Ring D has a 14-alpha-envelope c onformation. Cohesion of the crystal is due only to van der Waals inte ractions and weak intermolecular C-H ... O interactions.