紫处线吸收剂UV—531的合成  

The Synthesis of Ultra-Violet Absorber UV—531

作　　者：许维相[1] 苏敏 姜恒[1] 宫红[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001 [2]山东省聊城市公路管理局,山东聊城252000

出　　处：《化工时刊》2005年第12期25-27,共3页Chemical Industry Times

摘　　要：在无有机溶剂的情况下,以叔胺或季铵盐为催化剂,在强碱水溶液中,110℃下,以2,4-二羟基二苯甲酮和1-溴代正辛烷为原料高产率的合成了2-羟基-4-正辛氧基-二苯甲酮。实验结果表明:当十八叔胺为2.0 g,水为10 mL、2,4,二羟基二苯甲酮、KOH及1-溴代正辛烷分别为0.2 mol:反应时间4 h时,合成2-羟基-4-正辛氧基—二苯甲酮的产率可达91.6%。In the absence of organic solvent, 2-hydroxy-4-octyloxybenzophenone was prepared in high yield with 2,4- dihydroxybenzophenone and 1-bromooetane at 110℃ in strong alkaline media, using tertiary amines or quaternary ammonium salts as catalysts. The experimental result showed that the amount of oetodecyl tertiary amine was 2.0 g, the volume of water was 10 mL, the molar amount of 2,4-dihydroxybenzophenone, KOH and 1- bromooetane was 0.2 mol, respectively. The reaction time was 4 h, the yield of 2- hydroxy-4-octyloxybenzophenone was up to 91.6%.

关 键 词：2-羟基-4-正辛氧基-二苯甲酮 UV-531 紫外线吸收剂 催化剂 

分 类 号：TQ244[化学工程—有机化工]