An efficient and eco-friendly synthesis of 2-pyridones and functionalized azaxanthone frameworks via indium triflate catalyzed domino reaction
作者:N. Poomathi、P. T. Perumal、S. Ramakrishna
DOI:10.1039/c6gc03440c
日期:——
A green and efficient one-pot method has been developed for the synthesis of 2-pyridone and functionalized azaxanthone frameworks using indium triflate as an environmentally friendly, reusable catalyst. In this one-pot reaction, 3-formylchromones display a diverse pattern of reactivity upon reaction with different classes of alkenes. An indium triflate-promoted reaction with (Z)-N-methyl-1-(methyl
Three-component reactions of isocyanoacetates, amines and 3-formylchromones initiated by an unexpected aza-Michael addition
作者:Jia-Yu Liao、Wei Jie Yap、Ji'En Wu、Ming Wah Wong、Yu Zhao
DOI:10.1039/c7cc03468g
日期:——
mode of three-component reaction between isocyanoacetates, amines and 3-formylchromones. Both experimental studies and DFT calculations revealed that this Ag-catalyzed unusual transformation is initiated by a facile aza-Michael addition instead of the conventional imine condensation. By using an operationally simple procedure, this catalytic method enables an efficient synthesis of polysubstituted pyrroles