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Bimoussa A, Auhmani A, Ait Itto MY, Daran JC, Auhmani A. (1 S,3 R,8 R,11 S)-2,2,11-Tribromo-10-bromomethyl-3,7,7-trimethyltricyclo[6.4.0.0 1,3]dodec-9-ene. IUCRDATA 2016. [DOI: 10.1107/s2414314616008208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The title compound, C16H22Br4, was synthesized in two steps from β-himachalene, which was isolated from essential oil of the Atlas cedar (cedrus atlantica). It is built up from three fused rings, a seven-membered heptane ring, a six-membered cyclohexyl ring bearing both a bromine and a bromomethyl substituent, and a three-membered propane ring bearing two Br atoms. In the crystal, molecules are linked by C—H...Br hydrogen bonds, forming chains propagating along [001]. The absolute configuration was deduced from the chemical pathway and confirmed by resonant scattering [Flack parameter = 0.012 (10)].
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