| 二硝基甲苯还原羰基化钯络合物催化剂的研究 |
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| 引用本文： | 许翩翩,许金来,林俊,林正忠,张藩贤. 二硝基甲苯还原羰基化钯络合物催化剂的研究[J]. 厦门大学学报(自然科学版), 1988, 0(6) |
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| 作者姓名： | 许翩翩 许金来 林俊 林正忠 张藩贤 |
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| 作者单位： | 厦门大学化学系 物理化学研究所(许翩翩，许金来，林俊，林正忠)，厦门大学化学系 物理化学研究所(张藩贤) |
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| 摘 要： | 在钯络合物催化剂存在下,研究芳香硝基化合物一步还原羰基化为异氰酸酯的催化过程,考察了不同有机配体、无机助催剂以及催化剂制备方法对催化活性和选择性的影响。应用IR、NMR技术研究了钯络合物的结构,对还原羰基化催化机理进行了初步探讨。
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| 关 键 词： | 甲苯二异氰酸酯 芳香硝基化合物 还原羰基化 ?一吡啶络合物 |
Study on Palladium Complex Catalyst for Reductive Carbonylation of Dinitrotoluene |
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| Xu Pianpian Xu Jinlai Lin Jun Lin Zhengzhong Zhang Fanxian. Study on Palladium Complex Catalyst for Reductive Carbonylation of Dinitrotoluene[J]. Journal of Xiamen University(Natural Science), 1988, 0(6) |
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| Authors: | Xu Pianpian Xu Jinlai Lin Jun Lin Zhengzhong Zhang Fanxian |
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| Abstract: | Redactive Cabonylation of aromatic nitro compounds to isocy-anates in the presence of palladium complexes has been investigated. The--effects of various ligands, promoters and difference in catalyst preparation procedure on the activity of catalysts and selectivity of isocyanates were discussed. Using JR and NMR techniques, the structures of palladium complexes were studied and the reason of an increase in the catalytic efficency of catalyst prepared by grinding method was explained. The reaction mechanism for the carbonylation of nitro compounds by palladium complex catalysts was preliminarily discusted. |
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| Keywords: | Toluenediisoryanate Aromatic nitro compound Reductive carbonylation Palladium-pyidine complex |
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