Six methyl esters of 3-dialkylamino-substituted propionic acids were subjected to electrochemicalfluorination to give the corresponding perfluoroacid fluorides. The following dialkylamino substituents were investigated: diethylamino, di-n-propyl-amino, di-n-butylamino, pyrrolidino, morpholino and piperidino groups. These perfluoroacid fluorides, which were obtained in fair yields, are considered to
将3-二烷基氨基取代的丙酸的六种甲酯进行电化学氟化,得到相应的全氟代氟化物。研究了以下二烷基氨基取代基:二乙基氨基,二正丙基氨基,二正丁基氨基,吡咯烷基,吗啉代和哌啶子基。这些以合理收率获得的全氟酸氟化物被认为是制备软质(可降解)含氟化合物的潜在关键前体。这些盐在水溶液中显示出明显降低的表面张力。报告了所获得的所有全氟酸氟化物的物理性质,以及它们的光谱数据(19 F NMR,质谱和IR光谱)。
Fluorinations with complex metal fluorides. Part 7. Fluorinations of the methyl pyridines with caesium tetrafluorocobaltate
作者:Raymond G. Plevey、Richard W. Rendell、John Colin Tatlow
DOI:10.1016/s0022-1139(00)81512-2
日期:1982.11
4-Methylpyridine passed over caesium tetrafluorocobaltate at 330 – 340° gave tridecafluoro(1,3-dimethylpyrrolidine) (1) and its 3-difluoromethyl analogue (2), together with a range of polyfluoro-4-picolines (4 – 10) with −CF3, −CHF2 or −CH2F groups in the 4-position. 3-Methylpyridine similarly gave 1 and its 1,2-isomer (11) together with several polyfluoro-3-picolines (14 – 18). 2-Methylpyridine at