Chinese Journal of Magnetic Resonance ›› 2016, Vol. 33 ›› Issue (2): 327-336.doi: 10.11938/cjmr20160214

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A Spectroscopy Study on Novel Daidzein [1,3] Oxazin Derivatives

YUAN Jin-wei1, YIN Qiu-yue1, LI Yuan-zhe2, MAO Pu1, YANG Liang-ru1, XIAO Yong-mei1, QU Ling-bo1   

  1. 1. School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China;
    2. Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
  • Received:2015-06-29 Revised:2016-04-09 Online:2016-06-05 Published:2016-06-05

Abstract:

Two novel daidzein[1,3] oxazine derivatives were synthesized by a one-pot approach using daidzein, n-butyl amine and 37% aqueous solution of formaldehyde as the raw materials under ultrasonic radiation. The 1H and 13C NMR chemical shifts of the title compounds were assigned by two-dimensional NMR techniques, including DEPT, 1H-1H COSY, 1H-13C HSQC and 1H-13C HMBC. The reactive sites in daidzein were determined.

Key words: nuclear magnetic resonance (NMR), assignment, daidzein oxazin derivative

CLC Number: