第 38 卷第 6 期 | | Vol. 38 No. 6 | 2008 年 12 月 | Dec 2008 |
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所属栏目:香精香料
微波辐射合成对叔丁基苯甲酸 |
李敏谊,刘志雄,魏 丹
(广东药学院 药科学院,广东 广州 510006) |
摘 要:用对叔丁基甲苯(PTBT)为原料,高锰酸钾为氧化剂,季铵盐为相转移催化剂,采用微波辐射技术合成对叔丁基苯甲酸(PTBA)。考察了反应物的配比、微波辐射功率、反应时间等因素对反应收率的影响,得到反应的优化条件:n(对叔丁基甲苯)∶n(高锰酸钾)=1∶1.5,微波辐射功率660 W,反应时间为50 min,收率可达82.6%。其结构经IR和1H NMR确证。 |
关键词:对叔丁基苯甲酸;对叔丁基甲苯;微波辐射;相转移催化剂;合成 |
中图分类号:TQ02 文献标识码:A 文章编号:1009-9212(2008)06- 0038-03 |
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Synthesis of p-Tert-butylbenzoic Acid with Microwave Irradiation |
LI Min-yi,LIU Zhi-xiong,WEI-Dan
(Department of Parmacy,Guangdong Parmaceutical University,Guangzhou 510006,China) |
Abstract:p-Tert-butylbenzoic acid was synthesized using p-tert-butyl toluene as material,potassium permanganate as the oxidant and quaternary ammonium salts as phase transfer catalyst under microwave irradiation. Various factors that influenced the reaction were studied. The optimum conditions were determined as follows:the molar ratio of p-tert-butyl toluene and potassium permanganate was 1∶1.5,the microwave irradiation power was 660 W,the reaction time was 50 min,under the optimal conditions,the yield of product was 82.6%. The structure of products weas confirmed by IR and 1H NMR . |
Key words:p-tert-butylbenzoic acid;p-tert-butyl-toluene;microwave irradiation;phase transfer catalyst;synthesis |
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作者简介:李敏谊(1955-)女,副教授 硕士生导师,主要从事精细化学品与有机药物的合成研究。(E-mail:liminyigz@yahoo.com.cn)
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收稿日期:2008-11-13
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