Chinese Journal of Magnetic Resonance ›› 1998, Vol. 15 ›› Issue (1): 23-30.

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2D NMR STUDY ON TEA POLYPHENOLS

Jia Zhisheng, Zhou Bo, Yang Li, Wu Longmin, Liu Zhongli   

  1. National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000
  • Received:1997-08-21 Revised:1997-10-04 Published:1998-02-05 Online:2018-01-13

Abstract: Complete 1H and 13C NMR spectral assignments have been made by using H-H COSY, HMQC and HMBC techniques for active components extracted from green tea including (-) epicatechin (1),(-)-epigallocatechin (2), (-) epicatechin-3-O-gallate (3), (-) epigallocatechin-3-O-gallate (4), Theasinensin B (5)and strictinin (6).

Key words: 2D NMR, Tea polyphenols