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Ligand-free, atom-efficient Suzuki-Miyaura type cross-coupling reactions at room temperature
被引:37
|作者:
Zhou, Wen-Jun
[1
]
Wang, Ke-Hu
[1
]
Wang, Jin-Xian
[1
,2
]
Gao, Zhi-Rong
[1
]
机构:
[1] NW Normal Univ, Inst Chem, Dept Chem, Lanzhou 730070, Peoples R China
[2] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
来源:
关键词:
ASYMMETRIC ALDOL REACTIONS;
ARYL BOND FORMATION;
SODIUM TETRAPHENYLBORATE;
POLYETHYLENE-GLYCOL;
MICHAEL ADDITION;
PALLADIUM CATALYSTS;
RECYCLABLE REACTION;
ARYLBORONIC ACIDS;
SOLVENT-FREE;
C-C;
D O I:
10.1016/j.tet.2010.07.022
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The atom-efficient cross-coupling reaction of sodium tetraarylborates with aryl iodides and bromides was reported. The reaction can be performed directly using a catalytic system composed of palladium chloride, sodium carbonate and methanol (PdCl2/Na2CO3/MeOH) under heat-free conditions at room temperature in an open air conditions. The reactions carried out in an atom-efficient way as 4 equiv of aryl halides coupled effectively with 1 equiv of sodium tetraarylborates to furnish 4 equiv of the corresponding functionalized biaryls in good to excellent yields. (C) 2010 Elsevier Ltd. All rights reserved.
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页码:7633 / 7641
页数:9
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