Reactions involving fluoride ion. Part I. The polyfluoroalkylation of fluorinated aromatic systems
作者:R. D. Chambers、J. A. Jackson、W. K. R. Musgrave、R. A. Storey
DOI:10.1039/j39680002221
日期:——
Highly fluorinated aromatic compounds and their derivatives will react with carbanions produced from fluorinated olefins and fluoride ion, with the formation of polyfluoroalkyl derivatives, in a process which is the nucleophilic equivalent of the Friedel-Crafts reaction in hydrocarbon chemistry. Reaction occurs between hexafluoropropene and pentafluoropyridine, pentafluoronitrobenzene, and other activated
高度氟化的芳族化合物及其衍生物将与氟化烯烃和氟化物离子产生的碳负离子发生反应,形成多氟烷基衍生物,该过程与烃化学中的Friedel-Crafts反应的亲核当量相同。反应发生在六氟丙烯和五氟吡啶,五氟硝基苯以及其他活化系统(如八氟甲苯,五氟苄腈和五氟苯甲酸甲酯)之间。加成取代反应是通过增加烯烃的压力来实现的,CF 3 CF 2 –是比(CF 3)2 CF –更有效的亲核试剂。。氟化钾或氟化铯可用于引发,并且作为溶剂,四甘醇二甲醚和磺脲比二甲基甲酰胺,二甘醇二甲醚和三甘醇二甲醚更好。