Acta Cryst. (2012). E68, o93  [ doi:10.1107/S1600536811052664 ]

2,4-Di-tert-butyl-6-[(R/S)-1-(3,5-di-tert-butyl-2-hydroxyphenyl)ethyl]phenyl [(1R,4S)-7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl]methanesulfonate

C. Wang and J. Wu

Abstract: The asymmetric unit of the title compound, C₄₀H₆₀O₅S, comprises two diastereomers related, except for the chiral camphor groups, by a pseudo-inversion centre. In both diasteromers, the camphor sulfate moiety maintained the absolute configuartion (R,S) of the precursor. However, the absolute configurations at the methine C atoms are of opposite chirality. Both molecules reveal intramolecular O-HO hydrogen bonds, whereas van der Waals interactions define the crystal packing.

Online 10 December 2011

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