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Enantioselective Michael Addition of 3-Aryl-Substituted Oxindoles to Methyl Vinyl Ketone Catalyzed by a Binaphthyl-Modified Bifunctional Organocatalyst

Authors
Lee, Hyun JooWoo, Saet ByeolKim, Dae Young
Issue Date
Jun-2012
Publisher
Multidisciplinary Digital Publishing Institute (MDPI)
Keywords
oxindole; methyl vinyl ketone; conjugate addition; bifunctional organocatalysis; asymmetric catalysis
Citation
Molecules, v.17, no.6, pp 7523 - 7532
Pages
10
Journal Title
Molecules
Volume
17
Number
6
Start Page
7523
End Page
7532
URI
https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/15120
DOI
10.3390/molecules17067523
ISSN
1420-3049
Abstract
The enantioselective conjugate addition reaction of 3-aryl-substituted oxindoles with methyl vinyl ketone promoted by binaphthyl-modified bifunctional organocatalysts was investigated. The corresponding Michael adducts, containing a quaternary center at the C3-position of the oxindoles, were generally obtained in high yields with excellent enantioselectivities (up to 91% ee).
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