Reaction of the Ruppert–Prakash reagent with perfluorosulfonic acids
摘要:
A new property of Me3SiCF3 to undergo C-F bond activation upon interaction with perfluorosulfonic acids is described. The reaction is catalyzed by titanium tetrachloride and affords difluoromethyl perfluorosulfonates in good yields. (C) 2009 Elsevier B.V. All rights reserved.
[EN] SYNTHESIS OF DIFLUOROMETHYL ETHERS AND SULFIDES<br/>[FR] SYNTHÈSE DE DIFLUOROMÉTHYLÉTHERS ET DE DIFLUOROMÉTHYLSULFURES
申请人:UNIV CALIFORNIA
公开号:WO2014107380A1
公开(公告)日:2014-07-10
The synthesis of difluoromethyl ethers and sulfides with a simple, non-ozone- depleting reagent is described. The difluoromethylation of phenols with this reagent occurs at room temperature within minutes with exceptional functional group tolerance. The mild conditions makes possible tandem processes for the conversion of aryl boronic acids, aryl halides and arenes to difluoromethyl ethers. Mechanistic studies support a reaction pathway involving nucleophilic attack of the phenolate to difluorocarbene.
Reaction of the Ruppert–Prakash reagent with perfluorosulfonic acids
作者:Vitalij V. Levin、Alexander D. Dilman、Pavel A. Belyakov、Marina I. Struchkova、Vladimir A. Tartakovsky
DOI:10.1016/j.jfluchem.2009.05.003
日期:2009.7
A new property of Me3SiCF3 to undergo C-F bond activation upon interaction with perfluorosulfonic acids is described. The reaction is catalyzed by titanium tetrachloride and affords difluoromethyl perfluorosulfonates in good yields. (C) 2009 Elsevier B.V. All rights reserved.