New salen Mn(III) complexes (S,S)-6a-e prepared from tartaric-derived alicy
clic C-2 symmetric vicinal diamines were studied in the catalysis of the as
ymmetric epoxidation of unfunctionalized alkenes. Although the enantioselec
tivities obtained were not as high as for Jacobsen and Katsuki catalysts, t
he most striking result was the reversed asymmetric induction. (C) 1999 Els
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