Phosphine oxide-Sc(OTf)<Subscript>3</Subscript> catalyzed enantioselective bromoaminocyclization of <Emphasis Type="Italic">tri</Emphasis>-substituted allyl <Emphasis Type="Italic">N</Emphasis>-tosylcarbamates期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Phosphine oxide-Sc(OTf)3 catalyzed enantioselective bromoaminocyclization of tri-substituted allyl N-tosylcarbamates

Authors:	Xiangyu Tan Hongjie Pan Hua Tian Yian Shi

Affiliation:	1.Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry,Chinese Academy of Sciences,Beijing,China;2.University of Chinese Academy of Sciences,Beijing,China;3.Institute of Natural and Synthetic Organic Chemistry,Changzhou University,Changzhou,China;4.Department of Chemistry,Colorado State University,Fort Collins,USA

Abstract:	Phosphine oxide-Sc(OTf)₃ catalyzed regio- and enantioselective bromoaminocyclization of tri-substituted allyl N-tosylcarbamates is described. A wide variety of optically active tertiary 5-bromo-1,3-oxazinan-2-ones can be obtained with high regio-and enantioselectivity.

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