申请人:Istituto Guido Donegani
公开号:US04929772A1
公开(公告)日:1990-05-29
There is disclosed a process for preparing polyhalogenated carbinols having formula: ##STR1## by reacting a compound having formula: ##STR2## with a system consisting of a compound having formula: ##STR3## and of a divalent metal or of a metal salt, in protic dipolar solvents, in which formulae R=H, an alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkadienyl, phenyl, naphthyl, anthracyl group, a heterocyclic radical, optionally substituted; R'=H, a haloalkyl, --CN, --COOR" group with R" equal to H or to an alkyl group; X.sup.1 =Cl, Br; =X.sub.2 =F, Cl, Br; X.sup.3 =Cl, Br, CF.sub.3, CCl.sub.3 ; Y=Br or Cl when X.sup.1, X.sup.2 and X.sup.3 are different from Br.
公开了一种制备多卤代羟基甲基化合物的方法,其化学式为:##STR1## 通过在质子偶极溶剂中,将化学式为:##STR2## 的化合物与化学式为:##STR3## 的化合物和二价金属或金属盐体系反应,其中化学式中R=氢、烷基、环烷基、烯基、环烯基、烯二烷基、苯基、萘基、蒽基、杂环基,可选地被取代;R'=氢、卤代烷基、--CN、--COOR"基,其中R"等于氢或烷基;X1=氯、溴;X2=F、氯、溴;X3=氯、溴、三氟甲基、三氯甲基;当X1、X2和X3不等于溴时,Y=溴或氯。