One-Pot Synthesis of 2-Substituted-1 H-phenanthro[9,10- d]-
imidazoles Catalyzed by Ionic Liquids [TEAPS]HSO 4
GUO Gong-Yun, LI Ji-Chao, SHAO Hong-Bin
Chin. J. Org. Chem. . 2010, (03): 381 -388 .