Air Stable, Sterically Hindered Ferrocenyl Dialkylphosphines for Palladium-Catalyzed C−C, C−N, and C−O Bond-Forming Cross-Couplings
作者:Noriyasu Kataoka、Quinetta Shelby、James P. Stambuli、John F. Hartwig
DOI:10.1021/jo025732j
日期:2002.8.1
aryl halides coupled with acyclic or cyclic secondary alkyl- and arylamines, with primary alkyl- and arylamines, and with aryl- and primary alkylboronicacids. These last couplings provide the first general procedure for reaction of terminal alkylboronicacids with aryl halides without toxic or expensive bases. The ligand not only generates highly active palladium catalysts, but it is air stable in
Catalyst for aromatic C—O, C—N, and C—C bond formation
申请人:Yale University
公开号:US06562989B2
公开(公告)日:2003-05-13
The present invention is directed to a transition metal catalyst, comprising a Group 8 metal and a ligand having the structure
wherein R, R′ and R″ are organic groups having 1-15 carbon atoms, n=1-5, and m=0-4. The present invention is also directed to a method of forming a compound having an aromatic or vinylic carbon-oxygen, carbon-nitrogen, or carbon-carbon bond using the above catalyst. The catalyst and the method of using the catalyst are advantageous in preparation of compounds under mild conditions of approximately room temperature and pressure.
Triaminophosphine ligands for carbon-nitrogen and carbon-carbon bond formation
申请人:Iowa State University Research Foundation, Inc.
公开号:US07385058B1
公开(公告)日:2008-06-10
Methods and compounds are provided for the formation of carbon-nitrogen or carbon-carbon bonds comprising reacting an amine or an aryl boronic acid with an aryl halide in the presence of a palladium catalyst, a base, and a compound of formula II:
An Effective Heterogeneous Copper Catalyst System for C–N
Coupling and Its Application in the Preparation of
2-Methyl-4-methoxydiphenylamine (MMDPA)
作者:Manna Huang、Zhou Yi、Yiqian Wan、Xinhai Zhu
DOI:10.1055/s-0037-1609578
日期:2018.10
-1H-pyrrole-2-carbohydrazide (PSAP) has been established for Ullmann type C–Ncoupling based on the homogeneous catalyst system N′,N′-diphenyl-1H-pyrrole-2-carbohydrazide/CuI. This heterogeneous catalyst system maintained the catalytic effectiveness of the homogeneous catalyst. A variety of functionalized aryl bromides can be efficiently aminated with aryl amines and aliphatic amines with high selectivity
A New Class of Easily Activated Palladium Precatalysts for Facile C−N Cross-Coupling Reactions and the Low Temperature Oxidative Addition of Aryl Chlorides
作者:Mark R. Biscoe、Brett P. Fors、Stephen L. Buchwald
DOI:10.1021/ja801137k
日期:2008.5.1
one-component Pd precatalysts bearing biarylphosphine ligands is described. These precatalysts are air- and thermally stable, are easilyactivated under normal reaction conditions at or below room temperature, and ensure the formation of the highly active monoligated Pd(0) complex necessary for oxidative addition. The use of these precatalysts as a convenient source of LPd(0) in C-N cross-coupling reactions