internal or terminal site of the olefin, on the outcome of the Pauson–Khand cycloaddition in metal carbene enyne complexes is reported. In this study the steric and electronic effects have been evaluated. A diversion from the normal course of the reaction mechanism is observed.
                                    据报道,由于烯烃内部或末端杂原子的存在对
金属卡宾烯炔配合物中Pauson-Khand环加成反应的影响,已进行了研究。在这项研究中,对空间和电子效应进行了评估。观察到反应机理从正常过程转移。