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Author

Lah, Myoung Soo
Nanoporous Materials Lab
Research Interests
  • Metal-Organic Frameworks (MOFs)

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Highly enantioselective epoxidation of 2.4-diarylenones by using dimeric cinchona phase-transfer catalysts: Enhancement of enantioselectivity by surfactants

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Title
Highly enantioselective epoxidation of 2.4-diarylenones by using dimeric cinchona phase-transfer catalysts: Enhancement of enantioselectivity by surfactants
Author
Jew, SLee, JHJeong, BSYoo, MSKim, MJLee, YJLee, JChoi, SHLee, KLah, Myoung SooPark, H
Keywords
Asymmetric catalysis; Enantioselectivity; Epoxidation; Phase-transfer catalysis; Surfactants
Issue Date
200502
Publisher
WILEY-V C H VERLAG GMBH
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).
URI
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DOI
http://dx.doi.org/10.1002/anie.200462254
ISSN
1433-7851
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