| 对甲基苯磺酸催化合成4-乙酰氧基苯甲酸的研究 |
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| 引用本文： | 李启然,田华.对甲基苯磺酸催化合成4-乙酰氧基苯甲酸的研究[J].天津化工,2010,24(1):20-22. |
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| 作者姓名： | 李启然 田华 |
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| 作者单位： | 1. 兖矿物流危化品公司,山东,邹城,273500
2. 宏矿恒业化工有限公司,山东,邹城,273500 |
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| 摘 要： | 以对羟基苯甲酸和乙酸酐为原料,采用对甲基苯磺酸作催化剂合成4-乙酰氧基苯甲酸,考察了反应温度、反应时间、催化剂用量对产品的影响。实验结果表明酰化反应的优化条件n(对羟基苯甲酸)∶n(乙酸酐)∶n(对甲苯磺酸)=1∶2∶0.025,反应时间30min,反应温度80~89℃,产率达91.63%。
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| 关 键 词： | 4-乙酰氧基苯甲酸 乙酰化反应 合成 |
Study on synthesis of 4-acetory benzoic acid with p-methylbenzenesulforic acid as catalyst |
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| LI Qi-ran,TIAN-hua.Study on synthesis of 4-acetory benzoic acid with p-methylbenzenesulforic acid as catalyst[J].Tianjin Chemical Industry,2010,24(1):20-22. |
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| Authors: | LI Qi-ran TIAN-hua |
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| Affiliation: | 1.Yankuang danger of logistics company Shandong Zoucheng 273500;2.Hongkuang Hengye Chemical Co.;Ltd.Shandong Zoucheng 273500;China |
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| Abstract: | 4-acetory benzoic acid was prepared from p-hydroxy benzoic acid and acetic anhydride using pmethylbenzenesulfonic acid as catalyst.Many parameters including reaction temperature,reaction time,amount of catalyst were found to influence the yield of product.The optimum reaction condition are as follows： n （p-hydroxy benzoic acid）：n（acetic anhydride） ：n（p-methylbenzenesulfonic acid）=l：2：0.025,reaction time 30 min and reaction temperature 80-89℃,the yield was 91.63% Key words： 4-acetory benzoic acid; acetylation; synthsis |
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| Keywords: | 4-acetory benzoic acid acetylation synthsis |
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