反应条件
1: 1,5,6,7-tetrahydro-4H-indol-4-one With sodium hydride in N,N-dimethyl-formamide T=0°C; 0.5 h; Inert atmosphere; 2: toluene-4-sulfonic acid in N,N-dimethyl-formamide Inert atmosphere;
参考文献
Rosenberg, Marianne Lenes; Aasheim, Jens H. F.; Trebbin, Martin; Uggerud, Einar; Hansen, Tore
Tetrahedron Letters, 2009 , vol. 50, # 47 p. 6506 - 6508
