Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)

organic compounds

bt5753 scheme

Acta Cryst. (2012). E68, o232    [ doi:10.1107/S1600536811053852 ]

(3S*,4S*,E)-tert-Butyl 3,4-dibromo-5-oxocyclooct-1-enecarboxylate

M. Blanco, N. M. Garrido, F. Sanz and D. Diez

Abstract: The title compound, C13H18Br2O3, was prepared by a bromination reaction of (1E,3Z)-methyl 5-oxocycloocta-1,3-dienecarboxylate, which was obtained by an epoxydation reaction of tert-butyl cyclooct-1,3-dienecarboxylate. The crystal structure confirms unequivocally the absolute configuration of both chiral centres to be S. In the crystal, C-H...O interactions link the molecules into chains running along the c axis.

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