In the presence of a catalytic amount of Cp*RuCl(cod), 1,6-diynes were allowed to react chemo- and regioselectively with electron-deficient nitriles and heterocumulenes at 60−90 °C to afford heterocyclic compounds. The mechanism of the ruthenium-catalyzed regioselective formations of bicyclic pyridines and pyridones were analyzed on the basis of density functional calculations. Cyclocotrimerizations
在催化量的 Cp*RuCl(cod) 存在下,1,6-二炔可以在 60-90 °C 下与缺电子腈和杂
枯烯进行
化学和区域选择性反应,得到
杂环化合物。在密度泛函计算的基础上分析了
钌催化的双环
吡啶和
吡啶酮区域选择性形成的机制。
丙炔酸乙酯与
氰基甲酸乙酯或
异氰酸丙酯的环三聚反应产生四种可能的
吡啶或
吡啶酮区域异构体中的两种。