The synthesis of planar chiral pseudo-gem aminophosphine pre-ligands based on [2.2]paracyclophane
作者:Krishanthi P. Jayasundera、Tim G. W. Engels、David J. Lun、Maulik N. Mungalpara、Paul G. Plieger、Gareth J. Rowlands
DOI:10.1039/c7ob02393f
日期:——
The synthesis of three planarchiral pseudo-gem disubstituted [2.2]paracyclophane-derived P,N-pre-ligands is reported along with preliminary results of their activity in the amination of aryl bromides and chlorides. The pseudo-gem aminophosphines were capable of mediating the coupling reaction at a loading of 1 mol%.
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.
Nickel-catalyzed cross-coupling of aryltrimethylammonium triflates and amines
作者:Xue-Qi Zhang、Zhong-Xia Wang
DOI:10.1039/c3ob41989d
日期:——
Nickel-catalyzed cross-coupling of aryltrimethylammonium triflates and amines was carried out under mild conditions. The reaction has a broad scope of substrates and can be performed by a one-pot procedure from an aryldimethylamine.
The amination of 2‐pyridine‐ and 8‐quinolinesulfonic acids using magnesium amides is reported. Various amides reacted with N‐heterocyclic sulfonic acids, leading to aminopyridines and aminoquinolines in up to 98 % yield. Various amines important in medicinal chemistry, such as the antidepressant amoxapine, were suitable for these aminations.
Synthesis of N-heterocyclic carbene–PdCl<sub>2</sub>–(iso)quinoline complexes and their application in arylamination at low catalyst loadings
作者:Feng Liu、Yi-Ran Zhu、Lu-Gan Song、Jian-Mei Lu
DOI:10.1039/c6ob00013d
日期:——
N-Heterocyclic carbene–PdCl2–(iso)quinoline complexes were synthesized and they showed efficient catalytic activity in the C–N coupling of aryl chlorides.