引用本文:
郭巧霞, 申宝剑, 高桥保. MoCl5参与的芳香化合物的C-H活化及原位C-C键偶联反应[J]. 应用化学,
2008, 25(9): 1073-1077.
Citation: GUO Qiao-Xia, SHEN Bao-Jian, TAKAHASHI Tamotsu. MoCl5-Mediated Aromatic C-H Bond Activation and in situ C-C Bond Coupling Reaction[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1073-1077.
Citation: GUO Qiao-Xia, SHEN Bao-Jian, TAKAHASHI Tamotsu. MoCl5-Mediated Aromatic C-H Bond Activation and in situ C-C Bond Coupling Reaction[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1073-1077.
MoCl5参与的芳香化合物的C-H活化及原位C-C键偶联反应
English
MoCl5-Mediated Aromatic C-H Bond Activation and in situ C-C Bond Coupling Reaction
Abstract:
MoCl5 was found to activate the aromatic C-H bond,leading to in-situ C-C bond formation with high selectivity.A series of alkoxy-substituted aromatic compounds were coupled in para-position,in which it was not necessary to prepare the precursors:organometallics and ArX species.The present work provides a convenient method for the synthesis of pure symmetrical 4,4'-biaryls(e.g.,4,4'-dimethoxy-biphenyl,4,4'-diphenoxy-biphenyl,4,4'-dimethoxy-3,3'-dimethyl-biphenyl,2,3,2',3'-tetrahydro-[5,5']bibenzofuranyl,3,3'-dihydro-2,2'-dimethyl-[5,5']bibenzofuranyl,etc).Product structures were further verified by NMR and X-ray analysis.
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Key words:
- MoCl5
- / aromatic C-H bond activation
- / in situ coupling reaction
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