[EN] DISUBSTITUTED-AMINODIFLUOROSULFINIUM SALTS, PROCESS FOR PREPARING SAME AND METHOD OF USE AS DEOXOFLUORINATION REAGENTS<br/>[FR] SELS DE (AMINO DISUBSTITUÉ)DIFLUOROSULFINIUM, LEURS PROCÉDÉS DE PRÉPARATION ET D'UTILISATION EN TANT QUE RÉACTIFS DE DÉSOXOFLUORATION
申请人:OMEGACHEM INC
公开号:WO2010145037A1
公开(公告)日:2010-12-23
The invention relates to disubstituted-aminodifluorosulfinium salts represented by the formula (I). Processes for preparing same and methods of use as deoxofluorinating reagent is also provided.
A general route for the synthesis of β,β-difluorocarboxylic acids
作者:Or Cohen、Shlomo Rozen
DOI:10.1016/j.tet.2008.03.018
日期:2008.5
A new method for the preparation of β,β-difluoro- (and other gem-difluoro) acids has been developed. It is based on the fact that 3-oxocarboxylic esters are easy to make and convert to the corresponding dithiane derivatives. These dithianes reacted with BrF3, a commercial, but rarely used reagent in organic chemistry, under very mild conditions to form the corresponding difluoroesters, which in turn