The invention pertains to a process for preparing compounds of formula (I-A) or (I-B) here below: by reaction of perfluoroallylfluorosulfate (FAFS) of formula (II): with at least one hypofluorite of formula (II-A) or (II-B): wherein: RF in formulae (I-A) and (II-A) is a monovalent fluorocarbon C1-C20 group, optionally comprising oxygen catenary atoms, optionally comprising functional groups comprising heteroatoms (e.g. -SO2F groups); R'F in formulae (I-B) and (II-B) is a divalent fluorocarbon C-1-C6 group, preferably a group of formula (III): wherein X1 and X2, equal to or different from each other, are independently a fluorine atom or a C1-C3 fluorocarbon group. The FAFS-hypofluohte adducts of formulae (I-A) and (I-B) can be produced with high selectivity so as to access useful intermediates which can further be reacted taking advantage of the un-modified fluorosulfate group chemistry.
该发明涉及一种制备以下式(I-A)或(I-B)化合物的方法:通过将下式(II)的
全氟烯基
氟代
磺酸酯(FAFS)与至少一种下式(II-A)或(II-B)的
次氟酸盐反应:其中:在式(I-A)和(II-A)中,RF是一种一价的
全氟碳
氟碳基团,可包含氧原子,可包含包含杂原子的功能基团(例如,-SO2F基团);在式(I-B)和(II-B)中,R'F是一种二价的
全氟碳
氟碳基团,最好是式(III)的基团:其中X1和X2,相等或不相等,各自独立地是
氟原子或C1-C3
全氟碳基团。可以高选择性地制备式(I-A)和(I-B)的FAFS-
次氟酸盐加合物,以便获得有用的中间体,这些中间体可以进一步反应,利用未改性的
氟代硫酸酯基团
化学性质。