Reductive Buchwald‐Hartwig Amination of Nitroarenes with Aryl (pseudo)Halides
作者:Tian Cao、Yi‐Peng Luo、Long Cheng、Jia‐Li Zhao、Qiao‐Sen Jia、Shu Zhang、Xiang‐Wei Liu
DOI:10.1002/ejoc.202300494
日期:2023.8.21
syntheses of diarylamines from a palladium-catalyzed reductive Buchwald-Hartwig amination of nitroarenes with aryl (pseudo)halides is developed. The use of upstream nitroarenes as arylamine surrogates, the judicious selection of bis(pinaco-lato)diboron (B2pin2) as a stoichiometric reducing agent, wide substrate scope including (hetero)arylhalides (Cl, Br and I) and aryl triflates, constitute the striking
Water-Mediated Catalyst Preactivation: An Efficient Protocol for C−N Cross-Coupling Reactions
作者:Brett P. Fors、Philipp Krattiger、Eric Strieter、Stephen L. Buchwald
DOI:10.1021/ol801285g
日期:2008.8.21
A protocol for forming a highly active Pd(0) catalyst from Pd(OAC)(2), water, and biaryldialkylphosphine ligands has been developed. This protocol generates a catalyst system, which exhibits excellent reactivity and efficiency in the coupling of a variety of amides and anilines with aryl chlorides.