高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 55.

• Analytical Sciences • 上一篇    下一篇

Structure Determination and Detailed of 1H and 13C NMR Spectra Assignments of Villosumcoronarine-a New Diterpene from Hedychium Villosum Wall (Zingiberaceae)

SUN Cui-Rong, XIAO Peng, PAN Yuan-Jiang, CHEN Yao-Zu   

  1. Department of Chemistry, Zhejiang University, Hangzhou 310027
  • 出版日期:2000-12-31 发布日期:2000-12-31
  • 基金资助:

    The financial support of the Natural Science Foundation of Zhejiang Province is gratefully acknowledged.

Structure Determination and Detailed of 1H and 13C NMR Spectra Assignments of Villosumcoronarine-a New Diterpene from Hedychium Villosum Wall (Zingiberaceae)

SUN Cui-Rong, XIAO Peng, PAN Yuan-Jiang, CHEN Yao-Zu   

  1. Department of Chemistry, Zhejiang University, Hangzhou 310027
  • Online:2000-12-31 Published:2000-12-31
  • Supported by:

    The financial support of the Natural Science Foundation of Zhejiang Province is gratefully acknowledged.

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摘要：

Villosumcoronarin, a new diterpene isolated from the dried leaves of Hedychium villosum Wall (Zingiberaceae), yellow crystal (Et2O), m.pl08.4-108.8℃, has the molecular formula C20H28O2 derived from ESIMS (m/z 301, positive and m/z 299, negative), EIMS (m/z 300) and 13CNMR (DEPT 90 and DEPT135) spectral data., whose structure was elucidated as labda-8 (17), ll, 13-triene-15-oic-16-lactone (Figure 1) by the NMR spectral studies. The detailed NMR resonance assignments of these compound were achieved by using the 2D-NMR,1H-1H COSY, HMQC, HMBC and NOESY tests and comparing the spectroscopic data with yunnancoronarin B[1,2] (figure 2).

Abstract:

Villosumcoronarin, a new diterpene isolated from the dried leaves of Hedychium villosum Wall (Zingiberaceae), yellow crystal (Et2O), m.pl08.4-108.8℃, has the molecular formula C20H28O2 derived from ESIMS (m/z 301, positive and m/z 299, negative), EIMS (m/z 300) and 13CNMR (DEPT 90 and DEPT135) spectral data., whose structure was elucidated as labda-8 (17), ll, 13-triene-15-oic-16-lactone (Figure 1) by the NMR spectral studies. The detailed NMR resonance assignments of these compound were achieved by using the 2D-NMR,1H-1H COSY, HMQC, HMBC and NOESY tests and comparing the spectroscopic data with yunnancoronarin B[1,2] (figure 2).

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