method of manufacture of chlorinated derivatives of phenols from phenol

摘要

1344095 Production of catechol compounds CHEMOPETROL KONCERNOVA ORGANISACE PRO CHEMICKY PRUMYSL A ZPRACOVANI ROPY 19 April 1971 [22 April 1970] 9960/71 Heading C2C Catechol is prepared by heating a reactant mixture comprising o-chlorophenol, an alkali metal hydroxide, water and a catalyst containing copper, silver or strontium, condensing the water vapours formed and returning them to the reaction mass to control the temperature of the reaction within the range from 220‹ to 250‹ C.