Ru(II)-catalyzed asymmetric cyclopropanation using chiral diphenylphosphino(oxazolinyl)quinoline ligands
SCIE
SCOPUS
- Title
- Ru(II)-catalyzed asymmetric cyclopropanation using chiral diphenylphosphino(oxazolinyl)quinoline ligands
- Authors
- Park, SW; Son, JH; Kim, SG; Ahn, KH
- Date Issued
- 1999-05-21
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- Several chiral 8-diphenylphosphino-2-oxazolinylquinolines were synthesized starting from 2-cyano-8-hydroxyquinoline. These N,N,P-chelates were successfully employed in the Ru(II)-catalyzed asymmetric cyclopropanation reactions of diazo-alkenes. The catalytic system exhibited good reactivity and high thermal stability and provided high yields in the intramolecular cyclopropanation, albeit somewhat decreased enantioselectivities compared to known catalytic systems. A dramatic dependency of the enantioselectivity on the substituents of the oxazoline ring was observed. (C) 1999 Elsevier Science Ltd. All rights reserved.
- Keywords
- ENANTIOSELECTIVE INTRAMOLECULAR CYCLOPROPANATION; CATALYTIC CYCLOPROPANATION; COPPER-COMPLEXES; RH-II; CU-I; OLEFINS; DIAZOACETATES; HYDROGENATION; LACTONES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20359
- DOI
- 10.1016/S0957-4166(99)00190-1
- ISSN
- 0957-4166
- Article Type
- Article
- Citation
- TETRAHEDRON-ASYMMETRY, vol. 10, no. 10, page. 1903 - 1911, 1999-05-21
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- There are no files associated with this item.
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