Gold-catalyzed tandem reaction in water: an efficient and convenient synthesis of fused polycyclic indoles
作者:Enguang Feng、Yu Zhou、Fei Zhao、Xianjie Chen、Lei Zhang、Hualiang Jiang、Hong Liu
DOI:10.1039/c2gc35293a
日期:——
This report describes the gold-catalyzed synthesis of fused polycyclic indoles from substituted 2-(1H-indol-1-yl) alkylamines and alkynoic acids in waterundermicrowaveirradiation. This protocol proceeds in high atom economy and leads to the generation of two rings, together with the formation of one new C–C bond and two new C–N bonds in a single operation. The advantages of the method include a
react with alkynoic acids (AAs) to achieve gold‐catalyzed highly selective cascade reactions to furnish novel indole‐fused skeletons. Furthermore, with this powerful gold catalytic system, a library of indole/pyrrole/thiophene/benzene/naphthalene/pyridine‐based nitrogen‐containing heterocyclic compounds (NCHCs) with scaffold diversity and molecular complexity was constructed rapidly using various amine