Acta Cryst. (2002). E58, o72-o73  [ doi:10.1107/S1600536801021420 ]

3-(7,7-Dimethyl-2-oxobicyclo[2.2.1.]hept-1-ylmethanesulfonyloxy)-2-methyl-2-(toluene-4-sulfonyloxymethyl)propyl 4-chlorobenzoate

M. Linker, M. Schürmann, H. Preut and W. Kreiser

Abstract: The title compound, C₂₉H₃₅ClO₉S₂, is a tris(hydroxymethyl)ethane derivative with an asymmetric carbon in the propane skeleton. Surprisingly, in the unit cell, two stereoisomers with different configuration at this centre are present. Their relative orientation gives a nearly centrosymmetric arrangement, and all corresponding bond lengths and angles are comparable in the two molecules. Two additional chiral centres with S-configurations present in the camphorsulfonic acid group have to be the same in both molecules, rendering the two compounds diastereomers.

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