| 非活性溴代芳香化合物的甲氧基化反应 |
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| 引用本文： | 冀亚飞,许忻,宗志敏,魏贤勇. 非活性溴代芳香化合物的甲氧基化反应[J]. 化工进展, 2001, 20(1): 29-30 |
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| 作者姓名： | 冀亚飞 许忻 宗志敏 魏贤勇 |
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| 作者单位： | 中国矿业大学能源利用与化学工程系, |
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| 摘 要： | 以4－羟基－3，5－二溴苯甲醇和4－羟基－3－溴苯醛为原料，甲醇为溶剂，Cu2CL2-DMF或Cu2Cl2-CO2为催化剂, 和，高效地进行非活性代芳香化合物在化反应制备精细化学品丁香醛和香兰素，收率可达90％以上，Cu2Cl2-CO2催化反应体系放热平稳，可直接架收甲醇，有利于环境保护。
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| 关 键 词： | 甲氧基化反应 催化 丁香醛 香兰素 非活性 溴代芳香化合物 |
| 修稿时间： | 1999-12-10 |
Methoxylation of Non-activated Aromatic Bromides |
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| Ji Yafei,Xu Xin,Zong Zhimin,Wei Xianyong. Methoxylation of Non-activated Aromatic Bromides[J]. Chemical Industry and Engineering Progress, 2001, 20(1): 29-30 |
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| Authors: | Ji Yafei Xu Xin Zong Zhimin Wei Xianyong |
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| Abstract: | Syringaldehyde and vanillin were prepared from 35-dibromo-4-hydroxybenzaldehyde and 3-bromo-4-hydroxybenzaldehyde as starting materials,sodium methoxide as methoxylation agent,methanol as solvent,and cuprous chloride associated with dimethylformamide or carbon dioxide as catalysts with more than 90% yields.It provides a mild and efficient method for methoxylation of non-activated aromatic bromides without protecting the aldehyde function.The cuprous chloride-carbon dioxide catalyzed system releases heat smoothly and recovers purified methanol directly,and it is consistent with environmental protection. |
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| Keywords: | methoxylation catalysis syringaldehyde vanillin |
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