Action of nitric acid on compounds containing the CCl2=CCl group

Abstract

1. Under the action of concentrated nitric acid, compounds containing the CCl2=CCl group are smoothly converted into α,α,ω-trichloro carboxylic acids. In this way we prepared 2,2,4-trichlorobutyric, 2,2,5-trichlorovaleric, 2,2,6-trichlorohexanoic, 2,2,7-trichloroheptanoic, and 2,2,8-trichlorooctanoic acids. 2. 1,1,2,4-Tetrachloro-1-butene was oxidized with oxygen under ultraviolet radiation with formation of 2,2,4-trichlorobutyric acid.