Preparation of Polychlorinated Phenoxyphenols as Model Compounds of Impurities in Technical Chlorophenol Formulations
作者:Tarmo Humppi
DOI:10.1055/s-1985-31383
日期:——
The synthesis of polychlorinated phenoxyphenols (PCPPs) by three methods is described: condensation of chlorinated guaiacols with chlorobenzene or chlorofluorobenzenes in the presence of base, followed by O-demethylation; reaction of chlorinated diphenyliodonium salts with chlorinated guaiacols, or of 4,4′-dimethoxydiphenyliodonium salts with chlorophenols, followed by O-demethylation; chlorination of lower-chlorinated phenoxyphenols.