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Acta Cryst. (2013). E69, o275
[ doi:10.1107/S1600536813001700 ]

(1S,3R,8R,9S,11R)-2,2,10,10-Tetrachloro-3,7,7,11-tetramethyltetracyclo[6.5.0.01,3.09,11]tridecane

N. Ourhriss, A. Benharref, M. Saadi, L. El Ammari and M. Berraho

Abstract: The title compound, C17H24Cl4, was synthesized from [beta]-himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1H-benzocycloheptene), which was isolated from the essential oil of the Atlas cedar (Cedrus Atlantica). The molecule is built up from fused six- and seven-membered rings and two three-membered rings from the reaction of [beta]-himachalene with dichlorocarbene. The six-membered ring shows a chair conformation, whereas the seven-membered ring displays a boat conformation.


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