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Palladium-Catalyzed Regioselective Oxidative Coupling of Indoles and One-Pot Synthesis of Acetoxylated Biindolyls
被引:151
|作者:
Liang, Zuijun
[1
]
Zhao, Jinlong
[1
]
Zhang, Yuhong
[1
]
机构:
[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China
关键词:
DIRECT C-2 ARYLATION;
H BOND ARYLATION;
DIRECT FUNCTIONALIZATION;
ROOM-TEMPERATURE;
ARYL BROMIDES;
C-O;
ACTIVATION;
ALDEHYDES;
ACID;
ALKENYLATION;
D O I:
10.1021/jo902265s
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Mild conditions have been developed to achieve Pd-catalyzed homocoupling of indoles with excellent regioselectivity in the presence of Cu(OAc)(2)center dot H2O in DMSO at room temperature in high efficiency. This method provides a simple route to 2,3-biindolyls from the electron-rich to moderately electron-poor indoles. The reaction tolerates the bromide substitLient on indoles. In addition, a one-pot approach to C3-position acetoxylated biindolyls is realized via palladium catalysis by the use of AgOAc under oxygen atmosphere as oxidants.
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页码:170 / 177
页数:8
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