Nucleophilic chain substitution on perfluoroketene dithioacetals by ethyl 2-trimethysilyl acetate. Application to the synthesis of 2-trifluoromethyl succinic acid derivatives
作者:Cédric Brulé、Jean-Philippe Bouillon、Charles Portella
DOI:10.1016/j.tet.2004.08.040
日期:2004.10
A highly efficient substitution of the vinyl fluoride of perfluoroketene dithioacetals was achieved using trimethylsilylacetate to give 2-perfluoroalkyl succinic acid derivatives and 2-trifluoromethyl succinimides. This chain process was initiated by a catalytic amount of fluoride salt, whereas reaction failed with the corresponding lithium enolate.
使用三甲基甲硅烷基乙酸酯实现全氟乙烯二硫缩醛的氟乙烯的高效取代,得到2-全氟烷基琥珀酸衍生物和2-三氟甲基琥珀酰亚胺。该链过程是由催化量的氟化物盐引发的,而相应的烯醇锂反应失败。