Lewis Acid-Promoted Reaction of β,β-Difluorinated<i>N</i>,<i>O</i>-Acetal with Silylated Nucleophiles
作者:Takashi Tsukamoto、Tomoya Kitazume
DOI:10.1246/cl.1992.1377
日期:1992.7
Lewis acid-promoted reaction of ethyl 3-ethoxy-2,2-difluoro-3-(dimethylamino)propionate (1) with some silylated nucleophiles afforded β,β-difluoroamines in good yields. The formation of iminium ion intermediate from 1 and BF3·OEt2 was confirmed by 19F and 13C NMR spectroscopy.