| 磺化硅胶催化合成2-叔丁基对甲基苯酚 |
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| 引用本文： | 李冰,马峰,李立强,刘万毅.磺化硅胶催化合成2-叔丁基对甲基苯酚[J].精细石油化工,2008,25(6). |
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| 作者姓名： | 李冰 马峰 李立强 刘万毅 |
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| 作者单位： | 宁夏大学化学化工学院宁夏能源重点实验室,宁夏,银川,750021 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，宁夏自然科学基金 |
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| 摘 要： | 以4-甲基苯酚、叔丁醇为原料,磺化硅胶(SSA)为催化剂,合成了2-叔丁基对甲基苯酚。并获得了较佳合成条件:酚醇摩尔比1:1,催化剂用量为(以对甲苯酚质量计)11.75%,反应时间为3 h,反应温度80℃。产物的平均收率为89.4%,酚的选择性大于92%。该催化剂具有较高的催化活性,可回收重复利用。
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| 关 键 词： | 磺化硅胶 催化 2-叔丁基-4-甲基苯酚 4-甲基苯酚 叔丁醇 磺化硅胶 |
SYNTHESIS OF 2-tert-BUTYL-4-METHYLPHENOL CATALYZED BY SULFIDED SILICA |
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| Li Bing,Ma Feng,Li Liqiang,Liu Wanyi.SYNTHESIS OF 2-tert-BUTYL-4-METHYLPHENOL CATALYZED BY SULFIDED SILICA[J].Speciality Petrochemicals,2008,25(6). |
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| Authors: | Li Bing Ma Feng Li Liqiang Liu Wanyi |
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| Abstract: | 2-tert-Butyl-4-methylphenol was synthesized by using sulfided silica as catalyst with 4-meth- ylbenzene and tert-hutyl alcohol sulfide& The optimum conditions were found as follows:11.75% catalyst based on the mass of p-cresol,addition time of tert-butyl alcohol 3 h with 1 h further reac- tion,reaction temperature 80℃,and the molar ratio of tert-butyl alcohol to p-cresol 1:1.Under these conditions,the yield is 89.4% with selectivity above 92%.The catalyst shows high activity, and can be easily separated and reused. |
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| Keywords: | silica sulfuric acid catalytic 2-tert-butyl-4-methylphenol 4-methylbenzene tert-butyl alcohol sulfided silica |
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