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Title: 1,3-Dimethyl-2-(3-nitro-1,2,4-triazol-1-yl)-2-pyrrolidin-1-yl-1,3,2-diazaphospholidinium hexafluorophosphate (MNTP): a powerful condensing reagent for phosphate and phosphonate esters
Authors: Oka, Natsuhisa
Shimizu, Mamoru
Saigo, Kazuhiko
Wada, Takeshi
Issue Date: 10-Apr-2006
Publisher: Elsevier
Journal Title: Tetrahedron
Volume: 62
Issue: 15
Start Page: 3667
End Page: 3673
Abstract: A novel phosphonium-type condensing reagent, 1,3-dimethyl-2-(3-nitro-1,2,4-triazol-1-yl)-2-pyrrolidin-1-yl-1,3,2-diazaphospholidinium hexafluorophosphate (MNTP), was designed and synthesized. A 31P NMR study on the condensation reactions of phosphate, alkylphosphonate, boranophosphate, and H-phosphonate derivatives with an alcohol in the presence of MNTP demonstrated the versatility and the enhanced activity of the new condensing reagent, compared to the previously reported phosphonium-type condensing reagents. The mechanism of the condensation reactions mediated by MNTP is discussed on the basis of the 31P NMR studies and theoretical calculations.
Rights: © 2006 Elsevier Ltd. All rights reserved.
DOI: http://dx.doi.org/10.1016/j.tet.2006.01.084
Type: Journal Article
URI: http://hdl.handle.net/10173/726
Appears in Collections:学術雑誌論文
西郷, 和彦 (SAIGO, Kazuhiko)

Please use this identifier to cite or link to this item: http://hdl.handle.net/10173/726

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