Catalytic asymmetric [2,3]-sigmatropic rearrangement of sulfur ylides generated from copper(I) carbenoids and allyl sulfides |
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| Authors: | Zhang Xiaomei Qu Zhaohui Ma Zhihua Shi Weifeng Jin Xianglin Wang Jianbo |
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| Institution: | Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry, Peking University, Beijing 100871, P. R. China. |
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| Abstract: | Catalytic asymmetric sulfur ylide 2,3]-sigmatropic rearrangement of carbenoids generated from aryldiazoacetates has been investigated with a number of chiral Rh(II) and Cu(I) catalysts, and moderately high enantioselectivity (52-78% ee) can be achieved with Cu(MeCN)(4)PF(6)/2,2'-isopropylidenebis(4S)-4-tert-butyl-2-oxazoline]. |
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