NEW SYNTHETIC METHOD OF 4,4'-OXYBIS(BENZOIC ACID)AND ITS APPLICATION IN POLYESTER

作     者：Zheng Hua TIAN Shu Mei LIU Peng LEI Gang LI Anshan Institute of Iron & Steel Technology,Anshan,114002 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1991年第2卷第2期

页      面：119-120页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

主　　题：OC OXYBIS BENZOIC ACID)AND ITS APPLICATION IN POLYESTER NEW SYNTHETIC METHOD OF 4,4 ACID ITS 

摘      要：4,4 -Oxybis(benzoic acid)(Ⅰ)is an important monomer for making synthetic resin,heat resistant film and liquid crystal fiber,*** has been synthesized either by the oxidation of 4,4 -dimethyl diphenyl ether,or by the electrophilic substitution of diphenyl ether,these substituents introduced into the benzene ring can be further transformed into carboxylic *** ethers are usually prepared from phenols and halobenzenes through Ullmann *** to the high reaction temerature(usually above 200℃),long time heating and the formation of isomers,it is difficult to obtain pure products in high yields.