1. Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R. O. C.
2. UMR−CNRS, 6226 “Sciences Chimiques de Rennes”, Université de Rennes 1, 35042 Rennes cedex, France
3. Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A & F University, Lin’an, Zhejiang, 311300, P. R. China