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- [42] SYNTHESIS OF BOTH ENANTIOMERS OF OPTICALLY PURE SATURATED AND ALPHA,BETA-UNSATURATED GAMMA-SUBSTITUTED GAMMA-LACTONES FROM CHIRAL SULFOXIDES - X-RAY MOLECULAR-STRUCTURE OF (3R,4S)-4-METHYL-4-TERT-BUTYL-3-(PARA-TOLYLTHIO)BUTANOLIDE AND OF (3R,4R)-4-(CYCLOHEX-1-ENYL)-4-METHYL-3-(PARA-TOLYLTHIO)BUTANOLIDEL JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1986, (08): : 1405 - 1415