3,3'-Dihydroxy-5,5,5',5'-tetramethyl-2,2'-thiodicyclohex-2-en-1-one.

Molecules of the title compound, C(16)H(22)O(4)S, have twofold crystallographic symmetry and are stabilized by strong intramolecular O-H...

Sequential arrangement of gamma-valerolactone enantiomers enclathrated in cholic acid channels as studied by 13C solid-state NMR: elucidation of the optical resolution mechanism.

The mechanism of the optical resolution of gamma-valerolactone (VAL) enantiomers by enclathration in cholic acid (CA) channels was investigated. 13C cross-polarization magic-angle spinning spectra of CA/VAL inclusion compounds show four methyl 13C peaks of VAL with different intensities depending on the enantiomeric ratios. The four peaks were assigned to the inner and end (S)-(-)-enantiomers (S) in the S domain and the inner and end (R)-(+)-enantiomers (R).