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An Efficient Method for Sterically Demanding Suzuki-Miyaura Coupling Reactions
被引:100
作者:
Zhao, Qing
[1
]
Li, Chengxi
[1
]
Senanayake, Chris H.
[2
]
Tang, Wenjun
[1
]
机构:
[1] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Bioorgan & Nat Prod Chem, Beijing 100864, Peoples R China
[2] Boehringer Ingelheim Pharmaceut Inc, Chem Dev, Ridgefield, CT 06877 USA
关键词:
biaryls;
cross-coupling;
homogeneous catalysis;
palladium;
steric hindrance;
ORTHO-SUBSTITUTED BIARYLS;
HETEROCYCLIC CARBENE COMPLEXES;
HINDERED ARYL CHLORIDES;
GENERAL-METHOD;
CATALYST;
LIGAND;
NHC;
RUTHENOCENYLPHOSPHINE;
HALIDES;
BINOL;
D O I:
10.1002/chem.201203898
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
An efficient method for sterically demanding Suzuki-Miyaura coupling reactions has been developed with two catalysts, Pd/BI-DIME (see scheme) and Pd/phenanthrene-based ligand. The Pd/BI-DIME catalyst facilitates the syntheses of extremely hindered biaryls bearing ortho-isopropyl substituents. The other catalyst is efficient for the synthesis of functionalized tetra-ortho- substituted biaryls at low catalyst loadings. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码:2261 / 2265
页数:5
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