| 硒催化3-氯-4-甲基硝基苯羰基化合成绿麦隆 |
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| 引用本文： | 梅建庭,李鹏,陆世维.硒催化3-氯-4-甲基硝基苯羰基化合成绿麦隆[J].农药,2009,48(7). |
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| 作者姓名： | 梅建庭 李鹏 陆世维 |
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| 作者单位： | 1. 海军大连舰艇学院,辽宁,大连,116018;中国科学院,大连化学物理研究所,辽宁,大连,116023
2. 中国科学院,大连化学物理研究所,辽宁,大连,116023 |
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| 摘 要： | 以硒为催化剂、有机胺为助催化剂、3-氯-4-甲基硝基苯和二甲胺为反应底物,经高选择性氧化还原羰基化一步合成绿麦隆.在丙酮和甲苯溶剂中,155℃、4.0 MPa时反应4 h,单程最高收率可达62%,选择性为99%以上,催化剂及其催化体系均可以循环使用,循环收率的平均值可达75%.
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| 关 键 词： | 硒 绿麦隆 羰基化 循环使用 |
Selenium-catalyzed Carbonylation of 3-chloro-4-methyl-nitrobenzene to Chlortoluron Herbicide |
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| MEI Jian-ting,LI Peng,LU Shi-wei.Selenium-catalyzed Carbonylation of 3-chloro-4-methyl-nitrobenzene to Chlortoluron Herbicide[J].Pesticides,2009,48(7). |
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| Authors: | MEI Jian-ting LI Peng LU Shi-wei |
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| Affiliation: | 1.Dalian Naval institute;Dalian 116018;liaoning;china;2.Dalian institute of chemical Physics;chinese Academy of sciences;Dalian 116023;china |
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| Abstract: | The oxidative-reductive carbonylation of dimethyamine and 3-chloro-4-methyl-nitrobenzene catalyzed by selenium and organic base as cocatalyst to yield chlortoluron herbicide has been studied.on the condition of 155 oc,4.0 mPa and 4 h,the yield is reached 62%,the selectivity of chlortoluron is above 99% in acetone/toluene solvent.The se catalyst and chlortoluron are easily separated,both catalyst and catalytic system may be recycled in organic solvent.The average yields recycled of chlortoluron is reached ab... |
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| Keywords: | selenium chlortoluron carbonylation recycle |
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