Photochemistry of irgasan-triflate: A simple conversion of an aromatic hydroxyl group to chlorine in the synthesis of polychlorinated diphenyl ethers and polychlorinated dibenzofurans
作者:Yoon-Seok Chang、Jung-suk Jang、Max L Delnzer
DOI:10.1016/s0040-4020(01)86752-1
日期:——
Several chlorophenoxy phenols were converted to their triflates by reaction with trifluoromethanesulfonyl chloride. The trifilates undergo triplet seneltlzed photolytic cyclizations at 300 nm in acetone to give chlorodibenzofurans or singlet state substitution reactions in carbon tetrachloride saturated with chlorine gas to give the corresponding chlorine substituteddiphenylethers. 2-Chloro-3-hydroxy
KOLONKO K. J.; DEINZER M. L.; MILLER T. L., SYNTHESIS, 1981, N 2, 133-135
作者:KOLONKO K. J.、 DEINZER M. L.、 MILLER T. L.
DOI:——
日期:——
HUMPPI, T., SYNTHESIS, BRD, 1985, N 10, 919-924
作者:HUMPPI, T.
DOI:——
日期:——
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.