One Pot Synthesis of Pyrazolo[5,4- b]- γ-pyran Deriva-tives inIonic Liquid
LI Yu-Ling,DU Bai-Xiang, WANG Xiang-Shan*
ZENG Zhao-Sen,SHI Da-Qing,TU Shu-Jiang
Chin. J. Org. Chem. . 2006, (03): 346 -348 .