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Start Over Author "Xue-Yang Chen" Publisher georg thieme verlag kg
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1. Asymmetric Chlorination of 4-Substituted Pyrazolones Catalyzed by Chiral Copper Complexes

Author

Hao Yin, Xue-Yang Chen, Zhen-Hui Jiang, Ming-Ming Chu, Wan-Zhen Ju, Suo-Suo Qi, and Yifeng Wang

Subjects
010405 organic chemistry, Organic Chemistry, Enantioselective synthesis, chemistry.chemical_element, Oxazoline, 010402 general chemistry, 01 natural sciences, Copper, Medicinal chemistry, 0104 chemical sciences, Catalysis, Stereocenter, chemistry.chemical_compound, chemistry, Pyrazolones, Carbon
Abstract

A fast and highly enantioselective chlorination of 4-pyrazolones catalyzed by bis(oxazoline)–Cu(ClO4)2·6H2O complexes has been developed. Under the optimized conditions, a series of pyrazolones bearing stereogenic chlorine-attached carbon centers were obtained in moderate to high yields (up to 98%) and with enantioselectivities of up to 98% ee.

Published
2020

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