期刊
SCIENCE BULLETIN
卷 60, 期 2, 页码 210-215出版社
SCIENCE PRESS
DOI: 10.1007/s11434-014-0708-5
关键词
Asymmetric catalysis; Cyclopropanation; Sidearm; Bisoxazoline; alpha-Amino acids
资金
- National Natural Science Foundation of China [21421091, 21432011, 21272250]
- Chinese Academy of Sciences
A copper-catalyzed highly stereoselective cyclopropanation of 1,2-disubstituted olefins with alpha-nitrodiazo acetates has been developed, giving the desired products in up to 97 % yields, up to > 99/1 dr and up to 98 % ee, which provides an efficient access to the synthesis of optical active cyclopropane alpha-amino acids and unnatural alpha-amino acid derivatives.
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