BrΦnsted Acidic Ionic Liquids: Efficient and Recyclable Catalytic Systems for Beckmann Rearrangement
WU Mao-cheng, DUAN Hai-feng*, CAO Jun-gang, LIANG Da-peng, JIANG Feng, GAO Han, JIA Xu-dong and LIN Ying-jie
Chemical Research in Chinese Universities . 2011, (6): 973 -976 .