Process for the selective chlorination of phenolic compounds

摘要

Selective chlorination, using gaseous chlorine, of phenolic compounds, in an ortho position relative to the hydroxyl functional group. …??More precisely, a process for the selective chlorination in an ortho position relative to the hydroxyl functional group of phenolic compounds, using gaseous chlorine in a molten medium and in the presence of an organic cation. …??The process is applicable especially to the chlorination of 2,4- dichlorophenol as a mixture with 2,6-dichlorophenol.