Preparation of 1,1,1,3,3-pentachlorobutane and 1,1,1,3,3-pentafluorobutane

摘要

Process for preparing 1,1,1,3,3-pentachlorobutane (I) comprises adding carbon tetrachloride on 2-chloropropene in the presence of a copper salt and an amine. An independent claim is included for a process for preparing 1,1,1,3,3-pentafluorobutane, comprising submitting (I) to fluoridation from hydrofluoric acid.