Catalytic Asymmetric Sulfenylation of Unprotected 3-Substituted Oxindoles
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Catalytic asymmetric sulfenylation of unprotected 3-substituted oxindoles has been developed via cooperative catalysis of a chiral N,N′-dioxide–Sc(OTf)3 complex and a Brønsted base. Utilizing readily available N-(phenylthio)phthalimide as the sulfur source, a wide range of optically active 3-phenylthiooxindoles were obtained in excellent yields with excellent enantioselectivities under mild reaction conditions.
创建时间：
2012-06-01
