溴化铜催化合成乙酸叔丁酯

辽宁石油化工大学学报 ›› 2005, Vol. 25 ›› Issue (2): 17-19.

溴化铜催化合成乙酸叔丁酯

赵崇峰¹ , 程　云¹, 王　东¹ , 石　岩²

1.辽宁石油化工大学石油化工学院, 辽宁抚顺113001;
2.抚顺石化公司石油三厂, 辽宁抚顺113002

收稿日期:2004-11-11 出版日期:2005-06-20 发布日期:2017-04-18
作者简介:赵崇峰(1966 -), 男, 黑龙江宾县, 实验师。

Cataly tic Synthesis of tert -Butyl Acetate Wi th Copper(Ⅱ)Bromide

1 .School of Petrochemical Technology , Liaoning University of Petroleum & Chemical Technology , Fushun Liaoning 113001 ,P .R .China ;
2 .Petroleum Factory No .3 of Fushun Petrochemical Corporation , Fushun Liaoning 113002, P .R .China

Received:2004-11-11 Published:2005-06-20 Online:2017-04-18

摘要/Abstract

摘要： 　以溴化铜为催化剂, 通过酰化法制备了乙酸叔丁酯, 并用红外光谱进行了表征。以叔丁醇和乙酸酐为反应原料, 探讨了溴化铜对合成乙酸叔丁酯的催化性能, 详细考察了反应温度、反应时间、催化剂的摩尔分数及反应酐醇摩尔比等影响酰化反应的各种因素, 得出了乙酸酐和叔丁醇反应的较优条件。实验结果表明, 溴化铜对实现乙酸酐与叔丁醇的酰化反应具有良好的催化性能, 有一定的可行性和工业实用价值。溴化铜催化合成乙酸叔丁酯的优化条件为:回流温度下, 酐醇摩尔比为1 .4∶1, 溴化铜在醇中的摩尔分数为0 .5%, 反应2 h , 乙酸叔丁酯收率达83 .46 %。

关键词: 　溴化铜, 　酰化, 　乙酸叔丁酯

Abstract:

By using copper(Ⅱ) bromide as catalyst , tert -butyl acetate was synthesized via acylation and the product was determined by infrared spectrometry .By using tert -butyl alcohol and acetic anhydride as raw material , the catalytic behavior of copper(Ⅱ)bromide w as discussed in synthesizing tert -butyl acetate .Various factors such as reaction temperature , reaction time , mole fraction of catalyst and molar ratio of anhydride to alcohol , et al, which influence the acy lation reaction , were investig ated in detail.The optimum reaction conditions were given.The results indicate that copper(Ⅱ)bromide exhibit excellent catalytic activity for the acylation reaction of tert -butyl alcohol and acetic anhydride .I t is fairly feasible and has practical value in industry .The optimum reaction conditions are as following :reflux temperature , the molar ratio of anhydride to alcohol is 1.4∶1, reaction time is 2 hours, the mole fraction of copper(Ⅱ)bromide in alcohol is 0 .5 %, the yield of tert -butyl acetate is 83 .46 %.

Key words: 　Copper(Ⅱ)bromide , Acy lation , tert -Butyl acetate

赵崇峰,程　云,王　东, 石　岩. 溴化铜催化合成乙酸叔丁酯[J]. 辽宁石油化工大学学报, 2005, 25(2): 17-19.

ZHAO Chong -feng,CHENG Yun,et al. Cataly tic Synthesis of tert -Butyl Acetate Wi th Copper(Ⅱ)Bromide[J]. Journal of Liaoning Petrochemical University, 2005, 25(2): 17-19.

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