The halogenotetrafluoropropionic acid 3-iodotetrafluoropropionic acid of the formula ICF.sub.2 CF.sub.2 COOH, it is prepared by reacting iodine, tetrafluoroethylene and ethylene in a one-pot reaction under specific conditions, reacting the resulting compound ICF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 I with a base in order to eliminate hydrogen iodide and oxidizing the compound ICF.sub.2 CF.sub.2 --CH.dbd.CH.sub.2 thus obtained to give 3-iodotetrafluoropropionic acid. The halogenotetrafluoropropionic acid is an advantageous starting compound for the preparation of valuable unsaturated compounds containing functional groups.
卤代四
氟丙酸3-
碘代四
氟丙酸的
化学式为ICF.sub.2 CF.sub.2 COOH。它是通过在特定条件下将
碘、
四氟乙烯和
乙烯在一个反应釜中反应制备而成。反应后得到的化合物ICF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 I与碱反应,以消除
氢碘酸,并将所得的化合物ICF.sub.2 CF.sub.2 --CH.dbd.CH.sub.2氧化以得到3-
碘代四
氟丙酸。卤代四
氟丙酸是制备含有功能基的有价值的不饱和化合物的有利起始化合物。