作者:Adewale Martins Adio、Claudia Paul、Hailemichael Tesso、Petra Kloth、Wilfried A König
DOI:10.1016/j.tetasy.2004.03.030
日期:2004.5
The absolute configuration of the sesquiterpene hydrocarbon helminthogermacrene is established. Helminthogermacrene is an (E,Z)-configurational isomer of germacrene A and thus undergoes similar transformations forming elemenes via Cope rearrangement and yielding bicyclic systems via acid catalyzed reactions. The reaction products are investigated using enantioselective GC and extensive NMR measurements
建立了倍半萜碳氢菊酯马格丁烯的绝对构型。Helminthogermacrene是胚acA的(E,Z)构型异构体,因此会经历类似的转化,通过Cope重排形成elemenes,并通过酸催化反应生成双环系统。使用对映选择性GC和广泛的NMR测量(1 H–;1 H 1 H-COSY; HSQC; HMBC和NOE实验)对反应产物进行了研究。另外,给出了在该研究过程中分离出的相关化合物的NMR数据,该数据尚未在文献中报道。
The structure of helminthogermacrene
作者:Rudolph Ernst K. Winter、Franz Dorn、Duilio Arigoni