A series of novel (NHC)PdCl2-PR3 complexes were synthesized and fully characterized by 1H, 13C, 31P NMR and FT-IR spectroscopy. These complexes showed high catalytic activity toward solvent-free Buchwald–Hartwig amination. Both primary and secondary amines were efficiently utilized under the same reaction conditions. The solvent-free synthesis of valuable N-aryl carbazoles and similar N-heterocyclic
合成了一系列新颖的(NHC)PdCl 2 -PR 3配合物,并通过1 H,13 C,31 P NMR和FT-IR光谱进行了全面表征。这些配合物对无溶剂的布赫瓦尔德-哈特维
格胺胺化显示出很高的催化活性。在相同的反应条件下,
伯胺和仲胺均得到有效利用。描述了有价值的N-芳基
咔唑和类似的N-杂环体系的无溶剂合成。