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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la902176e
|2 doi
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|a eng
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|a Luo, Lin
|e verfasserin
|4 aut
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|a Stepwise photochemical-chiral delivery in gamma-cyclodextrin-directed enantioselective photocyclodimerization of methyl 3-methoxyl-2-naphthoate in aqueous solution
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a Date Completed 11.03.2010
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|a Date Revised 13.01.2010
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Irradiation of methyl 3-methoxyl-2-naphthoate (2,3-NA) with lambda > 280 nm results in photocyclodimerization to produce cubane-like photocyclodimer 1 and the [4 + 4] intermediate 2. The optically pure enantiomers of the intermediate 2 have been achieved by high-performance liquid chromatography (HPLC) resolution on a chiralcel OJ-RH column. Comparison of the enantiomeric excess (ee) values for photocyclodimer 1 and the intermediate 2 obtained in gamma-CD aqueous solution reveals the stepwise photochemical-chiral delivery for the first time, which is recognized to be a consequence of an in situ increase in the ee value from 39% for the [4 + 4] intermediate 2 to 48% for photocyclodimer 1 upon irradiation of 2,3-NA in the presence of gamma-CD
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|a Journal Article
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|a Cheng, Su-Fang
|e verfasserin
|4 aut
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1 |
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|a Chen, Bin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tung, Chen-Ho
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Li-Zhu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 2 vom: 19. Jan., Seite 782-5
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|g volume:26
|g year:2010
|g number:2
|g day:19
|g month:01
|g pages:782-5
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