Butadiene and methyl substituted 1,3-dienes react with zerovalent-nickel-ligand complexes in a stoichiometric manner to give octadienediylnickel-ligand complexes. The structure, rearrangement and reactions with CO and P-donor ligands of these species have been studied with the help of 1H and 13C NMR spectroscopy. The results provide an insight into the mechanism of the nickel-catalysed cyclodimerization
丁二烯和甲基取代的1,3-二烯以
化学计量的方式与零价
镍-
配体络合物反应,生成
辛二烯二基
镍-
配体络合物。借助1 H和13 C NMR光谱研究了这些物种的结构,重排以及与CO和P供体
配体的反应。该结果提供了对
镍催化的1,3-二烯环二聚反应机理的见解。