| 介孔碳负载铂催化2,2′-二氯氢化偶氮苯的清洁合成 |
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| 引用本文： | 李波,李明时,鲁墨弘.介孔碳负载铂催化2,2′-二氯氢化偶氮苯的清洁合成[J].精细石油化工,2012,29(5):27-31. |
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| 作者姓名： | 李波 李明时 鲁墨弘 |
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| 作者单位： | 常州大学石油化工学院,江苏常州,213164 |
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| 基金项目： | 国家自然科学基金，化工资源有效利用国家重点实验室，常州市应用基础研究计划 |
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| 摘 要： | 2,2′-二氯氢化偶氮苯(DHB)是合成3,3′-二氯联苯胺(DCB)的中间体。以邻硝基氯苯为原料,在碱性环境下以3%Pt/介孔碳(MC)为催化剂,通过加氢偶联的方法合成DHB。实验考察了助剂、温度、压力、NaOH溶液等因素对反应的影响,并根据实验结果确定了较佳的工艺条件。在优化的工艺条件下(反应温度为65℃,压力为0.5MPa),DHB的收率可达95.7%。
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| 关 键 词： | 邻硝基氯苯 2 2′-二氯氢化偶氮苯 催化加氢 铂/介孔碳催化剂 |
SYNTHESIS OF 2,2'-DICHLOROHYDRAZOBENZENE FROM ORTHO-NITROCHLOROBENZENE OVER MESOPOROUS CARBON SUPPORTED PLATINUM |
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| Li Bo
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Li Mingshi
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Lu Mohong.SYNTHESIS OF 2,2'-DICHLOROHYDRAZOBENZENE FROM ORTHO-NITROCHLOROBENZENE OVER MESOPOROUS CARBON SUPPORTED PLATINUM[J].Speciality Petrochemicals,2012,29(5):27-31. |
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| Authors: | Li Bo Li Mingshi Lu Mohong |
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| Affiliation: | (School of Petrochemical Engineering,Changzhou University,Changzhou 213164,Jiangsu,China) |
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| Abstract: | 2,2′-Dichlorohydrazobenzene(DHB) is an important commercial intermediate for the synthesis of 3,3′-dichlorobenzidine(DCB).Selective hydrogenation of o-nitrochlorobenzene to DHB over 3% Pt/MC catalyst in alkaline solution was investigated.Some parameters were studied such as additives,reaction temperature,reaction pressure,sodium hydroxide and so on.The results show that the yield of DHB as high as 95.7% was obtained at 85 ℃ and 0.5 MPa. |
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| Keywords: | 2-nitrochlorobenzene 2 2′-dichlorohydrazobenzene catalytic hydrogenation platinum/mesoporous carbon catalyst |
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