紫外线吸收剂UV-531合成新工艺  

A New Process for Production of Ultraviolet Absorbent UV-531

作　　者：孟波[1] 柳玉英[1] 周丽[1] 王捷[1] 

机构地区：[1]山东理工大学化学工程学院,山东淄博255012

出　　处：《山东化工》2004年第1期7-8,共2页Shandong Chemical Industry

摘　　要：用混和酸作催化剂 ,三氯甲基苯和间苯二酚在水相中缩合成中间体 2 ,4 -二羟基二苯基甲酮。然后在相转移催化剂的作用下 ,用 1 -氯辛烷醚化为目的产物 2 -羟基 - 4-正辛氧基二苯基甲酮 (UV - 531 )。本工艺具有反应时间短 ,收率高 ,环境友好 。In the water phase, benzotrichloride was condensed with resorcin by th e catalysis of mix acid to form intermediate 2,4-dihydroxybenzophenone. Then oct yloxylation the p-position by n-octyl chloride under the catalysis of the phase transition catalyst to form the target compound 2-hydroxy-4-octyloxybenzophenone (UV-531) has been studied. The new productive process has some advantages of sh ort reacting time, high yield, environmental friendly and economical.

关 键 词：三氯甲基苯 间苯二酚 2 4-二羟基二苯基甲酮 2-羟基-4-辛氧基二苯基甲酮 UV-531 紫外线吸收剂 合成工艺 

分 类 号：TQ314.257[化学工程—高聚物工业]