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Asymmetric oxidation of racemic 2-substituted 1,3-oxathianes
Bunnai Saito1, Tsutomu Katsuki
1Department of Chemistry, Faculty of Science, Graduate School, Kyushu University 33, Higashi-ku, Fukuoka 812-8581, Japan.
Chirality
|December 6, 2002
Abstract:
Racemic 2-substituted 1,3-oxathianes were oxidized with good to high enantiomer-differentiation by using urea hydrogen peroxide addition compound as oxidant in the presence of a catalytic amount of di-mu-oxo Ti(salen) complex, giving the corresponding sulfoxides diastereoselectively.