Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 19, Pages 5829-5833Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201601083
Keywords
asymmetric catalysis; dysprosium; enantioselectivity; heterocycles; Nligands
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Funding
- NSFC [21372180, 21525207]
- Fundamental Research Funds for the Central Universities
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An unprecedented asymmetric desymmetrization of meso-epoxides, derived from cyclopentene-1,3-diones, with 2-mercaptobenzothiazoles has been realized. It was efficiently catalyzed by a chiral Dy-III/N,N-dioxide complex through a thiolysis/elimination sequence. This remote stereocontrol strategy provides facile access to synthetically versatile cyclopentene derivatives bearing an all-carbon quaternary stereogenic center in high yield and excellent enantioselectivity. Intriguingly, optically active thiophene could be readily generated from the obtained product through an efficient one-pot protocol.
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