[EN] A METHOD FOR PREPARATION OF PERFLUOROALKYL SULFENYL CHLORIDE<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE CHLORURE DE PERFLUOROALKYLSULFÉNYLE
申请人:GHARDA KEKI HORMUSJI
公开号:WO2011080752A1
公开(公告)日:2011-07-07
A process for the preparation of perfluoroalkyl sulfenyl chloride; said process comprising i) reacting a compound of formula (I) wherein R represents an aromatic group with or without a substituent; and R' represents a halogen, with at least one fluoride compound and thiophosgene in a solvent to obtain a reaction mass; ii) pulverizing the reaction mass with the help of beads to obtain a mixture containing trifluoromethyl thiomethyl benzene derivative; iii) isolating the trifluoromethyl thiomethyl benzene derivative from the mixture; iv) distilling the trifluoromethyl thiomethyl benzene derivative to obtain a purified trifluoromethyl thiomethyl benzene derivative; v) dissolving the purified trifluoromethyl thiomethyl benzene derivative in a solvent selected from the group consisting of dichloromethane, toluene, benzene, ethylene dichloride, mono chloro benzene, carbon tctra chloride, ortho dichloro benzene and tri chloro benzene; and vi) cleaving the trifluoromethyl thiomethyl benzene derivative by selective chlorinolysis by passing chlorine gas at a temperature in the range of about -10 to about 30°C to obtain perfluoroalkyl sulfenyl chloride
一种制备全氟烷基磺酰氯的方法;该方法包括:i)将式(I)化合物与至少一种氟化物化合物和硫代氯酰在溶剂中反应,其中R表示带或不带取代基的芳香基;R'表示卤素,以获得反应物;ii)通过珠子的帮助粉碎反应物以获得含有三氟甲硫基苯甲基衍生物的混合物;iii)从混合物中分离出三氟甲硫基苯甲基衍生物;iv)蒸馏三氟甲硫基苯甲基衍生物以获得纯化的三氟甲硫基苯甲基衍生物;v)将纯化的三氟甲硫基苯甲基衍生物溶解在从以下组中选择的溶剂中:二氯甲烷、甲苯、苯、1,2-二氯乙烷、单氯苯、四氯化碳、邻二氯苯和三氯苯;vi)通过在约-10至约30°C的温度下通过氯气进行选择性氯解来断开三氟甲硫基苯甲基衍生物,以获得全氟烷基磺酰氯。