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Lah, Myoung Soo
Frontier Energy Storage Material Lab.
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Highly enantioselective epoxidation of 2.4-diarylenones by using dimeric cinchona phase-transfer catalysts: Enhancement of enantioselectivity by surfactants

Author(s)
Jew, SLee, JHJeong, BSYoo, MSKim, MJLee, YJLee, JChoi, SHLee, KLah, Myoung SooPark, H
Issued Date
2005-02
DOI
10.1002/anie.200462254
URI
https://scholarworks.unist.ac.kr/handle/201301/6071
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=20044396538
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.44, no.9, pp.1383 - 1385
Abstract
Dramatic increases in reaction rates and enantioselectivities can be effected by the use of surfactants for the phase-transfer catalytic epoxidation of aromatic enones. Based on the X-ray crystal structure of the most effective catalyst-a modified cinchona alkaloid-a plausible transition state of the reaction has been modeled (see picture; HOO- yellow, C gray, H white, N blue, O red).
Publisher
WILEY-V C H VERLAG GMBH
ISSN
1433-7851
Keyword (Author)
asymmetric catalysisenantioselectivityepoxidationphase-transfer catalysissurfactants
Keyword
COLONNA ASYMMETRIC EPOXIDATIONQUATERNARY AMMONIUM-SALTALPHA,BETA-UNSATURATED KETONESALKYLATIONENONESACIDS

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