| abstract |
A process for the preparation of 2,4-dichlorophenol is disclosed wherein chlorine gas is passed through molten phenol or liquid sulfuryl chloride is added dropwise, singly or in sequence, in the presence of a catalyst consisting of at least one heterocyclic saturated ring compound six- to ten-membered ring containing at least two sulfur atoms in the ring in an amount from 0.0001 to 0.01 g / g of phenol, and a metal halide selected from: iron, zinc, aluminum and antimony in an amount from 0.0001 to 0.01 g / g phenol. |