申请人:Hoechst Aktiengesellschaft
公开号:US04835318A1
公开(公告)日:1989-05-30
A process for the preparation of arylperfluoroalkyl ketones of the general formula I ##STR1## wherein R.sup.1 and R.sup.5 represent at least one of the substituents hydrogen, halogen, alkyl, alkoxy, alkylthio and perfluorinated alkyl, each having from 1 to 6 carbon atoms and n is an integer from 1 to 6, which comprises reacting an aryl carbonyl compound having the general formula II ##STR2## wherein R.sup.1 to R.sup.5 have the above-mentioned meaning and X as a monovalent moiety represents fluorine, chlorine or bromine and as a bivalent moiety the oxygen atom of an anhydride bridge, with a perfluoroalkyl halide of the general formula C.sub.n F.sub.2n+1 -Hal (III), wherein Hal represents chlorine, bromine or iodine and n is an integer from 1 to 6, in the presence of a trisdialkyl amide of phosphorus acid of the general formula P[N(alkyl)2]3 (IV).
一种制备芳基全氟烷基酮的方法,其通式为I:##STR1##其中,R1和R5代表氢、卤素、烷基、烷氧基、烷硫基和全氟烷基,每个都有1至6个碳原子的取代基,n是1至6的整数,包括在磷酸三二烷基酰胺存在下,将具有通式II的芳基羰基化合物:##STR2##其中,R1至R5具有上述含义,X作为一价基团表示氟、氯或溴,作为二价基团表示酸酐桥的氧原子,与具有通式CnF2n+1-Hal(III)的全氟烷基卤化物反应,其中Hal表示氯、溴或碘,n是1至6的整数。