固体超强酸催化合成1-溴代十二烷

Synthesis of N-Dodecyl Bromide with Solid Super Acid Catalyst

以十二醇为主要原料 ,研究与含溴物质反应 ,在固体超强酸催化剂作用下制备 1 溴代十二烷。制备出适于溴代反应的固体超强酸催化剂TiO2 SO4 2 - ;探讨出适于合成 1 溴代十二烷的工艺控制指标 :反应温度 1 0 0～ 1 1 0℃ ,反应时间 8h ,n(C12 H2 5OH)∶n(HBr) =1 .0∶2 .2 ,催化剂 (cat)用量为m(C12 H2 5OH)∶m(cat) =1 .0 0 0∶0 .1 2 5,收率为 80 .0 5%。

Bromodecane was prepared on the basis of 1 dodecanol and Br containing substances by solid super acid catalyst. Solid super acid catalyst TiO 2/SO 4 2- was prepared and the suitable preparation conditions were determined.Moreover,the suitable preparation conditions of 1 bromodecane were determined : reaction temperature 100～110 ℃,reaction time 8 h,mole ratio n(C 12 H 25 OH)∶n(HBr)=1.0∶2.2,amount of catalyst m(C 12 H 25 OH) ∶m(cat)=1.000∶0.125. The yield of 1 bromodecane was 80.05%.