Acta Cryst. (2013). E69, o275
[ doi:10.1107/S1600536813001700 ]
Abstract: The title compound, C17H24Cl4, was synthesized from -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 -himachalene with dichlorocarbene. The six-membered ring shows a chair conformation, whereas the seven-membered ring displays a boat conformation.
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