(1S,2R,7R,8S,10R)-9,9-Dibromo-2,6,6,10-tetramethyl-1a,2a-epoxytricyclo[5.5.0.0(8,10)] dodecane

被引：3

作者：

Benharref, Ahmed ^{[1
]}

El Karroumi, Jamal ^{[1
]}

El Ammari, Lahcen ^{[2
]}

Saadi, Mohamed ^{[2
]}

Berraho, Moha ^{[1
]}

机构：

[1] CNRST, Unite Associe, URAC16, Lab Chim Subst Nat,Fac Sci Semlalia, BP 2390 Bd My Abdellah, Marrakech 40000, Morocco

[2] Univ Mohammed V Agdal, Fac Sci, Appl, Lab Chim, Rabat, Morocco

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2013年 / 69卷

关键词：

D O I：

10.1107/S160053681301502X

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The title compound, C16H24Br2O, was synthesized from the reaction of beta-himachalene (3,5,5,9-tetramethyl-2,4a, 5,6,7,8-hexahydro-1H-benzocycloheptene), which was isolated from Atlas cedar (Cedrus atlantica) essential oil, after reaction with dibromocarbene. The asymmetric unit contains two independent molecules with similar conformations. Each molecule is built up from fused six-and seven-membered rings and two three-membered rings. In both molecules, the six-membered ring has an envelope conformation with the flap provided by the C atom of the epoxy ring, whereas the seven-membered ring displays a chair conformation. The crystal packing is governed only by van der Waals interactions. The absolute configuration was established from anomalous dispersion effects.

引用

页码：O1037 / +

页数：11

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