诺蒎酸的结构表征

目的: 采用现代分析技术表征诺蒎酸的结构。 方法: 由β-蒎烯氧化制备诺蒎酸,在合成和精制的基础上,获得诺蒎酸纯品;采用红外光谱、质谱、核磁共振波谱表征诺蒎酸的结构。 结果: 采用红外光谱、质谱、¹H、¹³C及二维核磁共振技术对其谱图进行了解析,证实了诺蒎酸的结构,用H-H COSY、C-H COSY等技术完成了¹H和¹³C NMR谱带的归属。 结论: 诺蒎酸的结构得到了表征,首次给出了该化合物的化学位移。

Objective: The molecular structure of nopinic aicd was characterized by modern analytical techniques. Methods: Nopinic acid was synthesized from β-pinene through oxidation.The molecular structure of nopinic aicd was characterized by using infrared spectrum,mass spectrometry,nuclear magnetic resonance. Results: The infrared spectrum,mass spectrometry,¹H spectrum,¹³C spectrum and several kinds of two dimensions nuclear magnetic resonance techniques were studied.The structure of nopinic acid was confirmed,and the compositions of ¹H spectrum and ¹³C spectrum were determined by H-H COSY,C-H COSY. Conclusion: The molecular structure of nopinic aicd has been characterized.The chemical shifts data of this compound have been reported at present.