Kinetic resolution of 2H-azirines via Cu(i)-catalyzed asymmetric 1,3-dipolar cycloaddition of azomethine ylides

Literature Information

Publication Date 2020-09-18
DOI 10.1039/D0QO00789G
Impact Factor 5.281
Authors

Hua Deng, Tian-Tian Liu, Zheng-Dong Ding, Wu-Lin Yang, Xiaoyan Luo


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Abstract

A highly efficient kinetic resolution of racemic 2H-azirines has been achieved by catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides. With an (S,Sp)-Ph-Phosferrox/Cu(MeCN)4BF4 complex as the catalyst, optically pure 2H-azirines were obtained with excellent enantioselectivities (up to 99% ee) and high resolution efficiency (S factors up to 845). Meanwhile, this process provided a direct approach to synthesize structurally novel 1,3-diazabicyclo[3.1.0]hexane derivatives with excellent enantioselectivities (94–99% ee).

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Organic Chemistry Frontiers

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