| Entrainer effect on photochirogenesis in near- and supercritical carbon dioxide: dramatic enhancement of enantioselectivity. | |
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MedLine Citation:
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PMID: 18500803 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Diethyl ether added as an entrainer (cosolvent) to near- and supercritical CO2 significantly enhanced the enantioselectivity of photocyclization of 5,5-diphenyl-4-penten-1-ol sensitized by saccharide naphthalenedicarboxylate to give a cyclization product in enantiomeric excesses much larger than those obtained in conventional organic solvents, revealing the unique features of nc- and sc-CO2 as well as the critical role of entrainer clustering to the intervening diastereomeric exciplex pair. |
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Authors:
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Yasuhiro Nishiyama; Takehiko Wada; Sadayuki Asaoka; Tadashi Mori; Taylor A McCarty; Nadine D Kraut; Frank V Bright; Yoshihisa Inoue |
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Publication Detail:
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Type: Journal Article Date: 2008-05-24 |
Journal Detail:
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Title: Journal of the American Chemical Society Volume: 130 ISSN: 1520-5126 ISO Abbreviation: J. Am. Chem. Soc. Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-06-12 Completed Date: 2008-07-18 Revised Date: 2008-12-18 |
Medline Journal Info:
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Nlm Unique ID: 7503056 Medline TA: J Am Chem Soc Country: United States |
Other Details:
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Languages: eng Pagination: 7526-7 Citation Subset: - |
Affiliation:
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Department of Applied Chemistry, Osaka University, Suita 565-0871, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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