芳基取代四甲基环戊二烯基铼羰基化合物的合成、晶体结构及催化性能 |
Syntheses, Crystal Structures and Catalytic Activity of Rhenium Carbonyl Complexes Containing Aryl-Substituted Tetramethylcyclopentadienyl Ligands |
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摘要: 芳基取代的四甲基环戊二烯 C5HMe4Ar(Ar=Ph,4-CH3Ph,4-OCH3Ph,4-ClPh,4-BrPh) 分别与Re2(CO)10在二甲苯中加热回流,得到了5个单核配合物[(η5-C5Me4Ar)Re(CO)3](Ar=Ph (1),4-CH3Ph (2),4-OCH3Ph (3),4-ClPh (4),4-BrPh (5))。通过元素分析、红外光谱、核磁共振氢谱对配合物1~5的结构进行了表征,用X射线单晶衍射法测定了配合物的结构。同时,研究了这五种配合物在芳香族化合物Friedel-Crafts烷基化反应中的催化活性。 |
关键词: 合成 单核铼羰基配合物 Friedel-Crafts烷基化反应 催化 |
基金项目: 国家自然科学基金(No.21372061)、河北省自然科学基金(No.B2013205025,B2014205018)和河北师范大学重点基金(No.L2012Z02)资助项目 |
Abstract: Cyclopentadienes C5HMe4Ar (Ar=Ph, 4-CH3Ph, 4-OCH3Ph, 4-ClPh, 4-BrPh) reacted with Re2(CO)10 in refluxing xylene to give new aryl-substituted tetramethylcyclopentadienyl mononuclear metal carbonyl complexes [(η5-C5Me4Ar)Re(CO)3] (Ar=Ph (1), 4-CH3Ph (2), 4-OCH3Ph (3), 4-ClPh (4), 4-BrPh (5)), respectively. The five new complexes were characterized by elemental analysis, IR, 1H NMR and 13C NMR spectroscopy. The crystal structures of complexes 1~5 were determined by X-ray crystal diffraction analysis. All five of these complexes have significant catalytic activity in Friedel-Crafts reactions of aromatic compounds with alkylation reagents. |
Keywords: synthesis mononuclear rhenium carbonyl complex Friedel-Crafts alkylation reaction catalysis |
投稿时间:2017-02-10 修订日期:2017-03-22 |
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马志宏,李战伟,秦玫,李素贞,韩占刚,郑学忠,林进.芳基取代四甲基环戊二烯基铼羰基化合物的合成、晶体结构及催化性能[J].无机化学学报,2017,33(6):1074-1080. |
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Support information: 相关附件: file170049_170049_Supporting_Information.doc |
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