資料載入中.....
|
請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/14959
|
| 題名: | Total Synthesis of Demethylwedelolactone and Wedelolactone by Cu-mediated/Pd(0)-catalysis and Oxidative-cyclization |
| 作者: | Chang, C. F.;Yang, L. Y.;Chang, S. W.;Fang Y. T.;Lee, Yean-Jang |
| 貢獻者: | 化學系 |
| 日期: | 2008-04
|
| 上傳時間: | 2012-12-10T02:51:52Z
|
| 出版者: | Elsevier |
| 摘要: | Hedysarimcoumestan B, which can be isolated from Chinese herbal medicine, is achieved, in which the longest linear sequence is only eight steps, in 50% overall yield from commercially available phloroglucinol. The key transformations in the synthesis are Cu-mediated/Pd(0)-catalysis and I2/pyridine oxidative-cyclization reactions. This synthetic strategy can be applied to give access to the demethylwedelolactone (4) and wedelolactone (5), which were afforded from commercially available phloroglucinol in high 38 and 33% yields, respectively. |
| 關聯: | Tetrahedron, 64(17): 3661-3666 |
| 顯示於類別: | [化學系] 期刊論文
|
文件中的檔案:
| 檔案 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | 0Kb | HTML | 722 | 檢視/開啟 |
|
在NCUEIR中所有的資料項目都受到原著作權保護.
|
