Abstract
The structure of the title compound, endo-2R-(-)-l-menthyl-1,4,5,6,7,7-hexachloronorbornene-2-carboxylate, consists of discrete C18H22Cl6O2 molecules related by a twofold screw axis. The relative configuration was determined and the chirality at the unknown centres was assigned on the basis of the known chiral centres of l-menthyl. Both the average Csp2-Cl, 1.689 (5), and Csp3-Cl, 1.753 (3) Å, distances are a little shorter than the literature values. The six-membered ring of the l-menthyl group has a chair conformation. C–O bond lengths in the carboxylate group are 1.194 (7) and 1.323 (7) Å.
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