By choosing DMF and dioxane as solvent, skeletons of indoles and pyrroles were constructed from alkynes and amines in the presence of PdCl2, respectively. These Pd-catalyzed reactions were phosphane-free with high atom efficiency and could be conducted under mild basic conditions. The proposed mechanism for the selective formation of indoles and pyrroles in different solvents is also discussed in this
通过选择
DMF和
二恶烷作为溶剂,在PdCl2存在下,
炔烃和胺分别构建了
吲哚和
吡咯的骨架。这些 Pd 催化的反应不含
磷烷,原子效率高,可以在温和的碱性条件下进行。本文还讨论了在不同溶剂中选择性形成
吲哚和
吡咯的机制。