A nickel-catalyzed couplingreaction of α-bromo-α-fluoroketones with arylboronic acids was reported, which provides an efficient pathway to access 2-fluoro-1,2-diarylethanones in high yields. We also disclosed the synthesis of the monofluorination agents α-bromo-α-fluoroketones by using a trifluoroacetate release protocol. Mechanistic investigation indicated that a monofluoroalkyl radical is involved
New Methodology for the Synthesis of <b>α,α</b>-difluoroketones
作者:Purakkattle Biju
DOI:10.1080/00397910801997637
日期:2008.5.23
Abstract A newmethodology is described for the synthesis of α,α-difluorinated ketones by the addition of organolithium reagents to α,α-difluoro-N-methoxy-N-methyl amides (Weinreb amides).