2-ALPHA,3-ALPHA-6-ALPHA,7-ALPHA-DIEPOXYHIMACHALANE

Authors
CHIARONI A RICHE C BENHARREF A LASSABA E BAOUID A
Citation
A. Chiaroni et al., 2-ALPHA,3-ALPHA-6-ALPHA,7-ALPHA-DIEPOXYHIMACHALANE, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2504-2507
Citations number
18
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
52
Year of publication
1996
Part
10
Pages
2504 - 2507
Database
ISI
SICI code
0108-2701(1996)52:<2504:2>2.0.ZU;2-B
Abstract
The stereochemistry of the minor isomer, 3,5,5,9-tetramethyldecahydro- 1H-benzocycloheptene, C15H24O2, resulting from the epoxidation of beta -himachalene has been established. The atoms C10 and the gem-dimethyl groups C14 and C15 adopt two positions leading to two conformations fo r the seven-membered ring, boat-shaped (occupation factor 70%) and cha ir-shaped (30%). Modelling of these conformations agrees with the stat istical distribution in the crystal.