Flavonoids are considered as a significant class of compounds among the natural products, exhibiting a variety of structural skeletons as well as multidirectional biological potentials. In structural elucidations of natural products, Nuclear Magnetic Resonance (NMR) spectroscopy has been playing a vital role; the technique is one of the sharpest tools in the hands of natural products chemists. The present resume deals with hard-core applications of such spectral technique, particularly in structural elucidation of flavonoids; different NMR techniques including 1H-NMR, 13C-NMR, and 2D-NMR [viz. 1H-1H COSY, COLOC, HMBC, HMQC] are described in detail.

类黄酮被认为是天然产物中的重要一类化合物，具有多种结构骨架以及多方向的生物潜力。在天然产物的结构解析中，核磁共振（NMR）光谱一直起着至关重要的作用。该技术是天然产品化学家手中最犀利的工具之一。本简历涉及这种光谱技术的核心应用，尤其是在类黄酮的结构解析中；包括1H-NMR，13C-NMR和2D-NMR在内的各种NMR技术。详细描述了1H-1H COSY，COLOC，HMBC，HMQC。