Journal
TETRAHEDRON
Volume 57, Issue 14, Pages 2739-2744Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(01)00152-1
Keywords
asymmetric induction; catalysts; oxidation; sulfoxides; titanium acid compounds
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An effective catalytic asymmetric oxidation of prochiral sulfide 1a to (S)-2a has been achieved by the use of chiral titaniummandelic acid complex. The enantioselectivity was found to be not influenced by moisture, and moderate to high selectivity (76% ee) was obtained at room temperature (25 degreesC). Thus a practical synthetic method for the platelet adhesion inhibitor, OPC-29030, was established utilising asymmetric oxidation of 1a. (C) 2001 Elsevier Science Ltd. All rights reserved.
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