公开(公告)号：US5427656A

公开(公告)日：1995-06-27

申请号：US219119

申请日：1994-03-29

申请人： Fredrick E. Behr ,  Yuri Cheburkov ,  John C. Hansen ,  Dong-Wei Zhu

发明人： Fredrick E. Behr ,  Yuri Cheburkov ,  John C. Hansen ,  Dong-Wei Zhu

IPC分类号： C25B3/08

CPC分类号： C25B3/08

摘要： A process for preparing inert or functional, tertiary carbon-containing perfluorochemicals comprises the step of electrochemically fluorinating, in the presence of anhydrous hydrogen fluoride, a composition comprising at least one starting compound selected from the group consisting of those fluoroalkanes, fluoroalkenes, fluoroalcohols, fluorocarboxylic acids, fluorocarboxylic acid halides, fluorocarboxylic acid esters, and combinations thereof which contain at least one (preferably, only one) --CX.sub.2 --C(R.sub.f).sub.2 -- group, wherein each X is independently selected from the group consisting of hydrogen, fluorine, and CH.sub.2 OH, with the proviso that only one X can be CH.sub.2 OH, and each R.sub.f group is independently perfluoroalkyl. The process enables preservation of the highly-branched structure of the starting compounds resulting in high product yields.

摘要翻译： 制备惰性或功能性含叔碳的全氟化合物的方法包括在无水氟化氢存在下电化学氟化包含至少一种起始化合物的组合物的步骤，所述起始化合物选自氟代烷烃，氟代烯烃，氟代醇，氟代羧酸 含有至少一个（优选仅一个）-CX 2 -C（R f）2 - 基团的酸，氟代羧酸卤化物，氟代羧酸酯及其组合，其中每个X独立地选自氢，氟， 和CH 2 OH，条件是仅一个X可以是CH 2 OH，并且每个R f基团独立地是全氟烷基。 该方法可保存起始化合物的高度支化结构，从而产生高产率。

公开(公告)号：US5318674A

公开(公告)日：1994-06-07

申请号：US85540

申请日：1993-06-30

申请人： Fredrick E. Behr ,  Yuri Cheburkov ,  John C. Hansen

发明人： Fredrick E. Behr ,  Yuri Cheburkov ,  John C. Hansen

IPC分类号： C25B3/06 ,  C07C303/02 ,  C07C303/22 ,  C07C309/80 ,  C25B3/08 ,  C25B1/24

CPC分类号： C07C303/02 ,  C07C303/22 ,  C25B3/08

摘要： A process for preparing perfluoroalkanesulfonyl fluorides, e.g., perfluoromethanesulfonyl fluoride, comprises electrochemically fluorinating in the presence of anhydrous hydrogen fluoride at least one precursor compound selected from the group consisting of .alpha.,.beta.-difluoroalkane-.beta.-sultones, e.g., 1,1,2,2-tetrafluoroethane sultone, and the corresponding .alpha.-halocarbonylfluoroalkanesulfonyl halides, e.g., fluorocarbonyldifluoromethanesulfonyl fluoride. The process can be used to prepare perfluoroalkanesulfonyl fluorides in good yield and can be, for example, both more electrically-efficient and more fluorine-efficient than the conventional preparative method involving the electrochemical fluorination of hydrocarbon alkanesulfonyl halides.

摘要翻译： 一种制备全氟烷基磺酰氟（如全氟甲磺酰氟）的方法包括在无水氟化氢存在下电化学氟化至少一种选自α，β-二氟烷烃-β-磺内酯的前体化合物，例如1,1,2 ，2-四氟乙烷磺内酯和相应的α-卤代羰基氟烷基磺酰卤，例如氟代羰基二氟甲磺酰氟。 该方法可用于以高产率制备全氟烷基磺酰基氟化物，并且可以例如比包含烃链烷磺酰卤的电化学氟化的常规制备方法更具有电效率和更高效的氟。