Crystal structure of (1 S ,3 R ,8 R ,9 S ,10 R )-10-bromomethyl-2,2-dichloro-9,10-epoxy-3,7,7-trimethyltricyclo[6.4.0.0 1,3 ]dodecane

The title compound, C 16 H 23 BrCl 2 O, was synthesized in three steps from β-himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1 H -benzocycloheptene), which was isolated from the essential oil of the Atlas cedar ( cedrus atlantica ). The molecule is built up from two fused six- and seven-mem...

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Bibliographic Details
Published in:Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2015-05, Vol.71 (5), p.o284-o285
Main Authors: Benharref, Ahmed, El Ammari, Lahcen, Saadi, Mohamed, Berraho, Moha
Format: Article
Language:English
Subjects:
crystal structure
β-himachalene derivative
π–π interactions
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Summary:The title compound, C 16 H 23 BrCl 2 O, was synthesized in three steps from β-himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1 H -benzocycloheptene), which was isolated from the essential oil of the Atlas cedar ( cedrus atlantica ). The molecule is built up from two fused six- and seven-membered rings, each linked to a three-membered ring. The six-membered ring has a screw-boat conformation, whereas the seven-membered ring displays a twist-boat conformation. The absolute structure was established unambiguously from anomalous dispersion effects.
ISSN:2056-9890
2056-9890
DOI:10.1107/S205698901500657X