会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Process for preparing branched perfluorochemicals
    • 制备支链全氟化合物的方法
    • US5427656A
    • 1995-06-27
    • US219119
    • 1994-03-29
    • Fredrick E. BehrYuri CheburkovJohn C. HansenDong-Wei Zhu
    • Fredrick E. BehrYuri CheburkovJohn C. HansenDong-Wei Zhu
    • C25B3/08
    • C25B3/08
    • 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.
    • 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。