Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)

organic compounds

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-H...O hydrogen bonds, whereas van der Waals inter­actions define the crystal packing.

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