An efficient and facile method for the synthesis of 3-indolyl-substituted phthalides by Friedel-Crafts alkylation of indoles with 3-hydroxyisobenzofuran-1(3H)-one has been developed. Using only 2 mol-% TsOH·H2O a...An efficient and facile method for the synthesis of 3-indolyl-substituted phthalides by Friedel-Crafts alkylation of indoles with 3-hydroxyisobenzofuran-1(3H)-one has been developed. Using only 2 mol-% TsOH·H2O as the catalyst, various substituted indoles can react smoothly at room temperature to give the corresponding phthalides products in good to excellent yields (up to 96%).展开更多
SA （sulfamic acid） catalyzes the reaction of indole with aldehyde and ketone to afford bis（indol-3-yl）methanes in good to excellent yields under solvent-free condition at ambient temperature.
A facile and highly efficient method has been developed for the synthesis of unsymmetrical N-aryl-2,2-di（1H-indol-3-yl）acetamide derivatives by regioselective Friedel-Crafts alkylation of the N-aryl-2-hydroxy-2-（1H...A facile and highly efficient method has been developed for the synthesis of unsymmetrical N-aryl-2,2-di（1H-indol-3-yl）acetamide derivatives by regioselective Friedel-Crafts alkylation of the N-aryl-2-hydroxy-2-（1H-indol-3-yl） acetamide derivatives with various indoles catalyzed by 2 mol/L H2SO4 at room temperature in ashort reaction time, the yield was up to 94%.展开更多
文摘An efficient and facile method for the synthesis of 3-indolyl-substituted phthalides by Friedel-Crafts alkylation of indoles with 3-hydroxyisobenzofuran-1(3H)-one has been developed. Using only 2 mol-% TsOH·H2O as the catalyst, various substituted indoles can react smoothly at room temperature to give the corresponding phthalides products in good to excellent yields (up to 96%).
文摘SA （sulfamic acid） catalyzes the reaction of indole with aldehyde and ketone to afford bis（indol-3-yl）methanes in good to excellent yields under solvent-free condition at ambient temperature.
文摘A facile and highly efficient method has been developed for the synthesis of unsymmetrical N-aryl-2,2-di（1H-indol-3-yl）acetamide derivatives by regioselective Friedel-Crafts alkylation of the N-aryl-2-hydroxy-2-（1H-indol-3-yl） acetamide derivatives with various indoles catalyzed by 2 mol/L H2SO4 at room temperature in ashort reaction time, the yield was up to 94%.
