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Synthesis 1985; 1985(10): 919-924
DOI: 10.1055/s-1985-31383
DOI: 10.1055/s-1985-31383
paper
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Preparation of Polychlorinated Phenoxyphenols as Model Compounds of Impurities in Technical Chlorophenol Formulations
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Publication History
Publication Date:
27 September 2002 (online)
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.