| 零价钯催化下赤霉素A3衍生物A环的反应 |
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| 引用本文： | 陈安齐.零价钯催化下赤霉素A3衍生物A环的反应[J].厦门大学学报(自然科学版),2001,40(1):81-91. |
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| 作者姓名： | 陈安齐 |
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| 作者单位： | 1. 厦门大学化学系,
2. University of Bristol, |
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| 基金项目： | 中英友好奖学金和教育部留学回国人员科研启动基金!资助项目 (无编号 ) |
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| 摘 要： | 在（Ph3P)4Pd(0)催化下，赤霉素A3（GA3）衍生物的A环在氢供体环己烯存在时发生氢解，形成1，3－二烯生产物；而在无氢供体时则发生A环的芳构化反应。通过选择适当的反应条件，可以得到不同主要产物。
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| 关 键 词： | 赤霉素A3 氢解反应 零价铯 芳构化 催化 |
Palladium Catalyzed Reactions on Ring A of Some Gibberellin A_3 Derivatives |
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| CHEN An qi ,Christine L Willis.Palladium Catalyzed Reactions on Ring A of Some Gibberellin A_3 Derivatives[J].Journal of Xiamen University(Natural Science),2001,40(1):81-91. |
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| Authors: | CHEN An qi Christine L Willis |
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| Institution: | CHEN An qi 1,Christine L Willis 2 |
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| Abstract: | Ring A of some gibberellin A 3 (GA 3) derivatives was found to undergo different type of reactions under the catalysis of (Ph 3P) 4Pd(0) in different solvents. In the presence of cyclohexene as the hydrogen donor, the reaction of 3 acylated GA 3 dimethyl ester (2) afforded 1,3 dienoic acid (4) as the major product accompanying by some degree of ring A aromatization, while in the absence of cyclohexene, the reaction gave aromatized compound (5) as the predominant product. The aromatization reaction was also found to occur in ring A of GA 3 enone (6) to give aromatized product (7) in 95% yield. |
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| Keywords: | gibberellin A 3 hydrogenolysis palladium(0) aromatization |
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