发明名称 PRODUCTION OF 1,7-DI(4-HYDROXYPHENYLTHIO)-3,5-DIOXAHEPTANE
摘要 PURPOSE:To obtain the titled compound in high purity, with a series of continuous steps, without using a particular purification process, from 4-mercaptophenol obtained by reducing 4-hydroxybenzenesulfonyl chloride. CONSTITUTION:A water-insoluble organic solvent solution containing 4-mercaptophenol is produced e.g. by adding a water-insoluble organic solvent (e.g. benzene, toluene, etc.) to the reduction product of 4-hydroxybenzenesulfonyl chloride, and transferring 4-mercaptophenol to the solvent. The solution is made to contact with an alkaline aqueous solution (e.g. NaOH solution) to extract the 4- mercaptophenol from the organic solvent solution to the alkaline aqueous solution. The objective compound can be prepared by reacting the 4-mercaptophenol contained in the aqueous solution with bis(2-haloethoxy)methane for 1-2hr under heating at 60-80 deg.C.
申请公布号 JPS60222456(A) 申请公布日期 1985.11.07
申请号 JP19840079207 申请日期 1984.04.19
申请人 RICOH KK 发明人 HIGETA SHIGERU;MARUYAMA KATSUJI
分类号 C07C319/14;C07C67/00;C07C313/00;C07C323/20 主分类号 C07C319/14
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