PREPARATION METHOD OF 2,4,4-TRICHLORO-2-HYDROXYDIPHENYL ETHER

摘要

PURPOSE: A chemical synthetic method to prepare 2,4,4-trichloro-2-hydroxydiphenylether, without producing the toxic by-products such as dibenzodioxins and dibenzofurans, is provided. The compound is low toxic anti-bacteria agent used in toiletries such as soap, detergent and cosmetics. CONSTITUTION: The preparation method of the compound represented by the chemical formula 1, comprises reacting 1,2-dichlorobenzene and the salts of phenol; chlorinating and carbonylating the resultant to obtain the intermediate, 2,4,4-trichloro-2- carbonyldiphenylether and oxidizing to make the final compound, 2,4,4-trichloro-2- hydroxydiphenyl ether.