ZUO Chuan-peng, YIN Du-lin, YANG Yong-jun, LIU Xian-xiang, GONG Yan, MAO Li-qiu

( Key Laboratory of Resource Fine-Processing and Advanced Materials, Universities of Hunan Province,　 Institute of Fine Catalysis and Synthesis, Hunan Normal University, ChangSha 410081)

Abstract: The Beckmann fragmentation ofcamphor oxime to α–campholenonitrile over solid sulfonic acid resin has been successfully performed. The influences of solvent, reaction temperature and reaction time on the fragmentation were examined. The results indicate that the conversion of oxime can reach 100% with 90.5% of selectivity to α–campholenonitrile under optimal reaction conditions. The kinetics show that Beckmann fragmentation of camphor oxime catalyzed by sulfonic acid resin obeys kinetics rule of the pseudo-first order reaction and the activation energy calculated from least square method is 64.6 kJ/mol.

Keywords: Beckmann fragmentation; Sulfonic acid resin; Camphor oxime; α –campholenonitrile

E-mail: dulinyin@126.com

Journal of Molecular Catalysis, Vol. 24, Issue 1, 2010, 25~30