Date Published: April 01, 2011
Publisher: International Union of Crystallography
Author(s): Brahim Boualy, Mohamed Anoir Harrad, Larbi El Firdoussi, Mustapha Ait Ali, Corrado Rizzoli.
The title compound, C11H16Cl4, was synthesized by the reaction of (1S)-β-pinene with triethylamine in the presence of ZnCl2. The cyclohexene ring assumes a half-boat conformation. The crystal packing is governed only by van der Waals interactions. The structure, which has been refined in P21, presents a striking P21/m pseudosymmetry.
For background to the synthesis of polyhalogenated compounds, see: Delaude et al. (2004 ▶); Borguet et al. (2007 ▶). For the synthesis and structure of natural chlorinated compounds reported by our group, see: Ziyat et al. (2002 ▶, 2004 ▶); Boualy et al. (2009 ▶). For bond-length data, see: Allen et al. (1987 ▶). For puckering parameters, see: Cremer & Pople (1975 ▶).