Acta Cryst. (2006). E62, o1920-o1922  [ doi:10.1107/S1600536806012621 ]

cis-5-Bromo-2,2,6-trimethyl-trans-6-phenyltetrahydropyran-3-carboxylic acid

J. Hartung, U. Bergsträßer, M. Greb, I. Svoboda and H. Fuess

Abstract: Centrosymmetric hydrogen-bonding between carboxy substituents links enantiomers of the title compound, C₁₅H₁₉BrO₃, into dimers. Close contacts that originate from axially arranged methyl substituents in positions 2 and 6 induce distortions, which are evident from a widening of the endocyclic bond angle at the ring O atom [122.6 (6)°] and a flattening of the tetrahydropyran chair.

Online 21 April 2006

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