THE SELECTIVE ACTIVATION OF ONE METHYL KETONE ENANTIOFACE VIA DELTA-BINDING TO A CHIRAL METAL TEMPLATE - SYNTHESIS AND REACTIVITY OF RHENIUM KETONE COMPLEXES [(ETA-5-C5H5)RE(NO)(PPH3)(ETA-1-ME(R)C=O)]+PF6-
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abstract
The title compounds (R = Me, Et, Ph) are synthesized from ketones in high yield, structurally characterized, and shown to undergo highly stereoselective nucleophilic attack; secondary alcohols can be made with 95 to 99% enantiomeric excess (e.e.).