土木香内酯和异土木香内酯与共轭二烯的Diels-Alder反应 |
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引用本文: | 贾韵仪,肖守军,董庭威,赵丕裕. 土木香内酯和异土木香内酯与共轭二烯的Diels-Alder反应[J]. 化学学报, 1991, 49(6): 610-614 |
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作者姓名: | 贾韵仪 肖守军 董庭威 赵丕裕 |
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作者单位: | 复旦大学化学系;复旦大学测试中心 |
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摘 要: | 本文以土木香根中分离得到的土木香内酯(1)和异土木香内酯(2)为原料, 分别与环戊二烯(3)、螺[2.4]-4,6-庚二烯(4)、呋喃、蒽或丙烯醛进行Diels-Alder反应, 发现和2只与3或4发生反应, 未能得到1和2与呋喃、蒽或丙烯醛的反应产物。X射线单晶衍射法确定1或2与3的反应产物的构型, 应用高分辨核磁共振谱NOE方法确定1或2与4的反应产物的构型。
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关 键 词: | 内酯 倍半萜 丙烯醛 X射线衍射分析 核磁共振谱法 环戊二烯 蒽 共轭双键化合物 双烯合成 构型 |
Diels-alder reaction of alantolactone and isoalantolactone with conjugated dienes |
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Abstract: | Alantolactone (I) and isoalantolactone (II) were separated from the root of Inula helenium. When I or II were reacted with cyclopentadiene (III), spiro(2.4)-4,6-heptadiene (IV), furan, anthracene and acrylaldehyde, the Diels-Alder reaction only occurred with III or IV. The configurations of the main addition products were determine by X-ray diffraction and high resoln. NMR. |
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Keywords: | LACTONES SESQUITERPENE PROPENAL X-RAY DIFFRACTION ANALYSIS NMR SPECTROMETRY CYCLOPENTADIENE ANTHRACENE CONJUGATED DOUBLE BOND COMPOUNDS DIENE SYNTHESIS CONFIGURATION |
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