| 稀土固体超强酸SO~4^2^-/TiO~2/La^3^+催化合成水杨酸 异丁酯 |
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| 引用本文： | 林进.稀土固体超强酸SO~4^2^-/TiO~2/La^3^+催化合成水杨酸 异丁酯[J].有机化学,2000,20(5):805-807. |
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| 作者姓名： | 林进 |
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| 作者单位： | 河北师范大学化学系 |
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| 基金项目： | 河北省自然科学基金资助项目(编号295108). |
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| 摘 要： | 研究了以稀土固体超强酸SO~4^2^-/TiO~2/La^3^+为催化剂，水杨酸和异丁醇为原料合成水杨酸异丁酯，并考察了影响反应的因素。结果表明，醇酸比为3:1，催化剂用量为1.0g(水杨酸为0.1mol的情况下)，带水剂苯为15mL，反应时间为3.0h是最适宜的反应条件，酯化率达96.2%。
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| 关 键 词： | 稀土 超强酸 二氧化钛 镧离子 催化 香精 酯化 水杨酸 异丁醇 固体酸催化剂 |
| 修稿时间： | 1999年9月7日 |
The catalytic synthesis of isobutyl salicylate using rare-earth solid superacid SO~4^2^-/TiO~2/La^3^+ |
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| LIN Jin.The catalytic synthesis of isobutyl salicylate using rare-earth solid superacid SO~4^2^-/TiO~2/La^3^+[J].Chinese Journal of Organic Chemistry,2000,20(5):805-807. |
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| Authors: | LIN Jin |
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| Institution: | Hebei Teachers Univ, Dept Chem.Shijiazhuang(050016) |
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| Abstract: | The synthesis of isobutyl salicylate with isobutyl alcohol and salicylic acid as reactants and rare-earth solid superacid SO~4^2^- /TiO~2/La^3^+ as catalyst have been studied. The factors that had influence on the reaction were investigated. The results showed that the optimal conditions were (for 0.1 mol of salicylic acid) using 1.0 g of catalyst and 15 mL of benzene (to remove water) with the molar ratio of isobutyl alcohol to salicylic acid being 3:1 and the reaction time being 3.0 h; The yield of isobutyl salicylate under such conditions was about 96.2%. |
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| Keywords: | RARE EARTH SUPERACID TITANIUM DIOXIDE LANTHANUM ION CATALYSIS ESSENCES ESTERIFICATION SALICYLIC ACID ISOBUTANOL SOLID ACID CATALYST |
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