Abstract
AbstractThe N,N′‐dioxide–Sc(OTf)3 complex was applied in the asymmetric Michael reaction of 1H‐benzotriazole with chalcones to give the corresponding N‐1 products in excellent yields (up to 99 %) with excellent enantioselectivities (up to 99 % ee). Further transformation into other optically active derivatives such as β‐benzotriazolyl ester, alcohol, and amide were also realized with excellent results.
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