二羟基二苯砜的合成及4.4′-异构体的分离  

Synthesis of Dihydroxy Diphenyl Sulfone and The Separation of 4.4'-Isomer

作　　者：陈锡如[1] 章书兰[1] 石成凤 

机构地区：[1]成都科技大学应用化学系

出　　处：《成都科技大学学报》1991年第4期21-28,共8页

摘　　要：本文报导了以苯酚和浓硫酸为原料,分别用溶剂共沸蒸馏,高温蒸馏,真空脱水等三种方法合成二羟基二苯砜的情况。比较它们的利弊.讨论了不同脱水方法中,反应条件对产率的影响,粗产品的纯化以及4.4’—异构体分离的有效方法。This paper describes the synthesis of dihydroxy diphenyl sulfone. Which is obtained by sulfonating and condensing a mixture of phenol andc oncentrated sulfuric acid Water is removed by solvent azeotropic distillation, distillation at higher temperature and vacunm dehydrated. The affecting factors for yield sulfone and an economical, efficient method for separation and purification of 4.4'-DDS have been discussed.

关 键 词：二羟基二苯砜 异构体 合成 砜基 

分 类 号：TQ242.2[化学工程—有机化工]