13C-NMR STUDY OF SUBSTITUENT EFFECTS IN 3 (OR 4)-X-BENZENECARBOXIMIDATES
Wu Meiyu, Yong Zhonggen, Shi Yaozeng, Jiang Weiping, Lu Wanfang, Hu Hongwen
Chinese Journal of Magnetic Resonance . 1989, (4): 423 -430 .