| 用甲基叔丁基醚合成2,5-二叔丁基对苯二酚 |
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| 引用本文： | 蔡可迎,杨爱华,翟富民,魏贤勇.用甲基叔丁基醚合成2,5-二叔丁基对苯二酚[J].精细石油化工,2001(3):22-24. |
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| 作者姓名： | 蔡可迎 杨爱华 翟富民 魏贤勇 |
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| 作者单位： | 中国矿业大学化工学院, |
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| 摘 要： | 研究了以对苯二酚和甲基叔丁基醚 ( MTBE)为原料 ,以酸性阳离子交换树脂为催化剂合成 2 ,5二叔丁基对苯二酚 ( DBHQ)。用正交试验法 ,得到合成 DBHQ的适宜工艺条件为 :n ( MTBE)∶ n (对苯二酚 ) =3∶1 ,m (催化剂 )∶ m (对苯二酚 ) =0 .6∶ 1 ,反应时间为 7～ 8h,反应温度为 80℃ ,连续分出甲醇。在此条件下产物中的 DBHQ质量分数可达 91 .9%。
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| 关 键 词： | 2 5-二叔丁基对苯二酚 甲基叔丁基醚 对苯二酚 烷基化 合成 |
| 修稿时间： | 2000年8月27日 |
SYNTHESIS OF 2,5-Di-tert-BUTYLHYDROQUINONE BY METHYL tert-BUTYL ETHER |
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| Cai Keying,Yang Aihua,Zhai Fumin,Wei Xianyong.SYNTHESIS OF 2,5-Di-tert-BUTYLHYDROQUINONE BY METHYL tert-BUTYL ETHER[J].Speciality Petrochemicals,2001(3):22-24. |
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| Authors: | Cai Keying Yang Aihua Zhai Fumin Wei Xianyong |
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| Abstract: | Synthesis of 2,5-di-tert-butylhydroquinone by alkylation of hydroquinone with methyl tertbutyl ether (MTBE) was studied. The effects of reaction time, reaction temperature and solvents on the yield of 2,5-di-tert-butylhydroquinone were also investigated. Under the optimum conditions: the reaction temperature about 80 ℃, the reaction time 7～8 h, n(MTBE)∶n(hydroquinone)=3∶1, m(catalyst)∶m(hydroquinone)=0.6∶1, the content of 2,5ditertbutylhydroquinone in the product reached 91.9%. Because of its high yield and mild conditions, this method is convenient for preparing 2,5-di-tert-butylhydroquinone and prospective in industrial application. |
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| Keywords: | ditertbutylhydroquinone metyltertbutyl ether hydroquinone alkylation synthesis |
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