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[1]毛利民,邹晓虹,郭涛,等.二苄醚法合成乙酸苄酯[J].武汉工程大学学报,2010,(09):26-30.[doi:10.3969/j.issn.16742869.2010.09.008]
　MAO Li min,ZOU Xiao hong,GUO Tao,et al.Synthesis of benzyl acetate by dibenzyl ether[J].Journal of Wuhan Institute of Technology,2010,(09):26-30.[doi:10.3969/j.issn.16742869.2010.09.008]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2010年09期
页码:
26-30
栏目:
化学与化学工程
出版日期:
2010-09-30

文章信息/Info

Title:
Synthesis of benzyl acetate by dibenzyl ether
文章编号:
16742869(2010)09002605
作者:
毛利民; 邹晓虹; 郭涛; 周宇; 李毅
武汉有机实业有限公司,湖北 武汉 430035
Author(s):
MAO Limin; ZOU Xiaohong; GUO Tao; ZHOU Yu; LI Yi
Wuhan Youji Industrial Company Limited, Wuhan 430035,China
关键词:
乙酸苄酯; 二苄醚; 对甲基苯磺酸
Keywords:
benzyl acetate;  dibenzyl ether;  ptoluenesulfonic acid
分类号:
O614.3
DOI:
10.3969/j.issn.16742869.2010.09.008
文献标志码:
A
摘要:
以二苄醚和醋酸酐为原料合成了乙酸苄酯,分别对催化剂种类与用量、原料配比、反应温度、反应时间、精制工艺和抗氧剂等对产物的影响进行了研究,得到了合适的工艺条件:以对甲基苯磺酸为催化剂,在130~140 ℃下反应25~35 min,原料二苄醚与醋酐摩尔比为1∶(1.1~1.2);得到的粗品先进行减压简单蒸馏脱去催化剂,然后在抗氧剂和氮气的保护下精馏得到成品.产品纯度可达99.5%左右,总收率可达80%以上.同时进行了工艺放大实验.本法工艺生产条件温和,后处理简明,适宜工业化.
Abstract:
Benzyl acetate was synthesized from dibenzyl ether and acetic anhydride;the influencing factors of the reaction,such as catalyst,molar ratio of acetic anhydride to dibenzyl ether,reaction temperature,reaction time,and so on, were investigated.The optimal conditions were obtained as follows:using ptoluenesulfonic acid as a catalyst,molar ratio of acetic anhydride to dibenzyl ether was 1∶(1.1—1.2),reaction temperature was 130—140 ℃,and reaction time was 25—35 min.After reaction,the catalyst was removed by vacuum distillation,and the product was obtained by distillation under antioxidant and N2.Yield of benzyl acetate could reach above 80％,and the purity could reach about 99.5%.Further, the scaleup test was carried out.The technology conditions are mild,simple postprocessing,and suitable for Industrialization.

参考文献/References:

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［5］张小曼.SO2-4/TiO2/S3+m催化合成乙酸苄酯的研究［J］.昆明师范高等专科学校学报,2004,26(4):3637.
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［7］高远,徐安武.固体超强酸催化剂SO2-4/TiO2的制备及其光催化氧化性能［J］.广东有色金属学报,2002(2):9093.

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备注/Memo

备注/Memo:
张瑞收稿日期:20100527作者简介:毛利民(1962),男,湖北武汉人,教授级高级工程师.研究方向:有机合成.
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