Bromination of hydroxy aromatic compound and transformation to jihidorokishi aromatic compound

摘要

The element condition copper or under existing of the copper compound the hydroxy aromatic compound, as a catalyst, the brominated hydroxy aromatic compound like the p- bromophenol the hydrogen bromide or the alkaline metal or with the bromine source like the alkaline earths metal ill-smelling chemical material and making oxygen contact in acidic medium, is produced. Transformation to the jihidorokishi aromatic compound like the hydroquinone due to hydrolysis and, the brominated product of this reaction, 4,4 by the restoration coupling ' to utilize alternately in transformation to the jihidorokishibihueniru chemical compound like - jihidorokishibihueniru it is possible.