3,3'-二氨基-4,4'-二羟基二苯砜的制备  

Preparation of the 3,3'-Diamino-4,4'-dihydroxydiphenyl Sulfone

作　　者：康永利 张文 姚晓龙 张慧丽 王轩 栗晓东 Kang Yongli Zhang Wen Yao Xiaolong Zhang Huili Wang Xuan Li Xiaodong(Tianjin Junkai Chemical Co. , Ltd. , Tianjin 300384, Chin)

机构地区：[1]天津市均凯化工科技有限公司,天津300384

出　　处：《山东化工》2017年第6期29-29,31,共2页Shandong Chemical Industry

摘　　要：邻溴苯酚与过硫酸氢钾在三氟甲磺酸及三氟甲磺酸酐和氯仿中反应得到3,3'-二溴-4,4'-二羟基二苯砜,之后在N-甲基吡咯烷酮中与氨水反应得到3,3'-二氨基-4,4'-二羟基二苯砜。总收率88%。该路线具有收率高,原材料易得,溶剂可回收套用,环境友好等优点。2-Bromophenol react with potassium monopersulfate,trifluoromethanesulfonic acid and trifluoro Methanesulfonic anhydride in chloroform to get 3,3＇-dibromo-4,4＇-dihydroxydiphenyl sulfone; then react with ammonium hydroxide in 1-methyl-2-pyrrolidinone to get 3,3＇-diamino-4,4＇-dihydroxydiphenyl sulfone The total yield was 74. 8%. This route has high yield,easy to buy raw materials,the solvent can be recycled,environment friendly,etc.

关 键 词：3 3′-二氨基-4 4′-二羟基二苯砜 3 3′-二溴-4 4′-二羟基二苯砜 2-溴苯酚 三氟甲磺酸酐 

分 类 号：O621.3[理学—有机化学]