Synthesis and characterization of N-heterocyclic carbene-palladium(<scp>ii</scp>) chlorides-1-methylindazole and -1-methylpyrazole complexes and their catalytic activity toward C–N coupling of aryl chlorides
作者:Xiao-Yun Zhao、Quan Zhou、Jian-Mei Lu
DOI:10.1039/c6ra02556k
日期:——
series of N-heterocycliccarbene-palladium(II) chlorides-1-methylindazole and -1-methylpyrazole complexes was successfully synthesized and fully characterized by X-ray single crystal diffraction. In addition, initial investigations of their catalytic activity showed that they were efficientcatalysts in the C–N coupling of primary and secondary amines with aryl chlorides at low catalyst loadings.
Amination of Aryl Halides Mediated by Electrogenerated Nickel from Sacrificial Anode
作者:Farah Daili、Stéphane Sengmany、Eric Léonel
DOI:10.1002/ejoc.202100194
日期:2021.5.7
C(sp2)−N bond formation only mediated by nickel salts electrogenerated from the sacrificial anode has been investigated for the first time to prepare functionalized arylamine derivatives. The cross‐couplings are performed under constant current electrolysis, in an undivided cell, and without additional ligand at room temperature.
Synthesis of N-heterocyclic carbene-Pd(II)-5-phenyloxazole complexes and initial studies of their catalytic activity toward the Buchwald-Hartwig amination of aryl chlorides
作者:Zhi-Mao Zhang、Yu-Ting Xu、Li-Xiong Shao
DOI:10.1016/j.jorganchem.2021.121683
日期:2021.5
N-heterocyclic carbene (NHC)-Pd(II) complexes using 5-phenyloxazole as the ancillary ligand have been obtained in moderate to good yields by a one-pot reaction of the corresponding imidazolium salts, palladium chloride and 5-phenyloxazole under mild conditions. Initial studies showed that one of the complexes is an efficient catalyst for the Buchwald-Hartwig amination of arylchlorides with various secondary
n-Butyllithium-mediated synthesis of N-aryl tertiary amines by reactions of fluoroarenes with secondary amines at room temperature
作者:Yingyin Lin、Meng Li、Xinfei Ji、Jingjing Wu、Song Cao
DOI:10.1016/j.tet.2017.01.050
日期:2017.3
A simple and facile method for the synthesis of aromatic tertiary amines by amination of fluoroarenes with secondaryamines in the presence of n-butyllithium at room temperature was reported.
Three-Component Reactions of Arynes, Amines, and Nucleophiles via a One-Pot Process
作者:Gyoungwook Min、Jeongseob Seo、Haye Min Ko
DOI:10.1021/acs.joc.8b01058
日期:2018.8.3
An unprecedented three-component reaction of arynes, tertiary amines, and nucleophiles has been demonstrated through ammonium salt intermediates. This protocol allows access to tertiary aniline derivatives containing the piperazine motif in good-to-excellent yields. Expansively, this reaction can produce biologically important 2-(4-phenylpiperazin-1-yl)ethyl-containing molecules using arynes, 1,4-diazabicyclo(2