Asymmetric reduction of ketoxime O-alkyl ethers with sodium borohydride–Lewis acid

Abstract
Novel hydride agents formed by combining Lewis acids with sodium borohydride (NaBH4) reduce quantitatively ketoxime O-alkyl ethers to the corresponding optically active primary amines with high enantioselectivities (up to 95% e.e.) in the presence of chiral amino alcohols.

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