A (perfluoroalkyl)dibenzonium salt represented by the following general formula ##STR1## wherein R.sub.f represents a perfluoroalkyl group having 1 to 10 carbon atoms, A represents a sulfur of selenium atom, R.sup.1 and R.sup.2, independently from each other, represent a hydrogen atom or a nitro group, X.sup..crclbar. represents a conjugated base of Bronsted acid, and n is 0 or 1. The said compound is useful as a reagent for introducing a perfluoroalkyl group.
以下是翻译结果:
一种由下列一般式表示的(perfluoroalkyl)dibenzonium盐:##STR1## 其中R.sub.f表示具有1至10个碳原子的
全氟烷基,A表示
硫或
硒原子,R.sup.1和R.sup.2独立地表示氢原子或硝基,X.sup..crclbar.表示BronSTed酸的共轭碱,n为0或1。该化合物可用作引入
全氟烷基的试剂。