| 二氢沉香呋喃倍半萜的2D NMR研究 |
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| 引用本文： | 涂永强,吴大刚.二氢沉香呋喃倍半萜的2D NMR研究[J].波谱学杂志,1992,9(1):45-50. |
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| 作者姓名： | 涂永强 吴大刚 |
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| 作者单位： | 1. 兰州大学应用有机化学开放实验室, 兰州 730000;2. 中科院昆明植物研究所植化室 |
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| 摘 要： | 利用1H-13C相关(1H-13C COSY)谱对1β-乙酰氧基-2β(α-甲基丁酰氧基)-6α-羟基-8β,9α-二苯甲酰氧基-β-二氢沉香呋喃(A),和1β-乙酰氧基-2β(α-甲基丁酰氧基)-6α-羟基-8β(β-呋喃甲酰氧基)-9α-苯甲酰氧基-β-二氢沉香呋喃(B)的13C NMR谱化学位移进行了全指定,利用1H-1H远程相关(1H-1H COSYLR)谱确定了化合物A和B中6-Ha和7-He,8-He和9-He的弱偶合,以及7-He和9-He的弱W型远程偶合.
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| 关 键 词： | 二氢沉香呋喃倍半萜 1H-1H COSYLR 远程偶合 1H-13C COSY 化学位移 |
| 收稿时间： | 1991-01-23 |
STUDY OF 2D NMR OF DIHYDROAGAROFURAN SESQUITERPENES |
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| Tu Yongqiang LiZfzhong.STUDY OF 2D NMR OF DIHYDROAGAROFURAN SESQUITERPENES[J].Chinese Journal of Magnetic Resonance,1992,9(1):45-50. |
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| Authors: | Tu Yongqiang LiZfzhong |
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| Institution: | 1. National Laboratory of Applicational Organic Chemistry, Lanzhou University;2. Kunming Institute of Botany, the Chinese Academy of Sciences, Kunming |
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| Abstract: | The complete assignments of 13C NMR chemical shifts for 1β-acetoxy-2β (α-methylbutanoyloxy)-6α-hydroxy-8β,9α-dibenzoyloxy-β-dihydroaga -rofuran(A) and 1β-acetoxy-2β(α-methylbutanoyloxy)-6α-hydroxy-8β -(β-furancarbonyloxy) -9α-benzoyloxy -β-dihydroagarofuran(B), were carried out on the basis of 1H-13C correlation(1H-13C COSY) spectra. The weak coupling between 6-Ha and 7-He, and between 8 -He and 9-He, and the "W" long -range coupling between 7-He and 9-He for compounds A and B were also determined on the basis of 1H-1H long-range correlation (1H -1H COSYLR) spectra. |
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| Keywords: | Dihydroagarofuran sesquitcrpene 1H-1H COSYLR Long-range coupling 1H-13C COSY Chemical shift |
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