Functionalization of the Allyl Fragment in (+)- -Cadinol
摘要:
Epoxidation, bromination, and iodination of the double bond in (+)-delta-cadinol under various conditions are accompanied by formation of 1,4- or 1,5-epoxy derivatives. By contrast, vicinal hydroxylation gives rise to "normal" products. Intramolecular cyclization of the resulting vicinal diols was studied.
The role of germacrene D as a precursor in sesquiterpene biosynthesis: investigations of acid catalyzed, photochemically and thermally induced rearrangements
作者:Nils Bülow、Wilfried A König
DOI:10.1016/s0031-9422(00)00266-1
日期:2000.9
Germacrene D is considered as a precursor of many sesquiterpene hydrocarbons. We have investigated the acid catalyzed as well as the photochemically and thermallyinducedrearrangement processes of germacrene D isolated from several Solidago species, which contain both enantiomers of germacrene D. Enantiomeric mixtures of sesquiterpenes of the cadinane, eudesmane (selinane), oppositane, axane, isodaucane
Germacrene D 被认为是许多倍半萜烃的前体。我们研究了从几种一枝黄花物种中分离出的锗烯 D 的酸催化以及光化学和热诱导的重排过程,其中含有锗烯 D 的两种对映异构体。 cadinane、eudesmane (selinane)、oppositane、axane、异十二烷和波旁烷组以及异热菌烯 D 被确定为主要产品,并可作为参考化合物用于植物成分的结构研究和立体化学分配。重排产物之一的 Delta-amorphene 首次被确定为天然产物。γ-阿吗啡的绝对构型通过与锗烯 D 的绝对构型的相关性进行了修正。
Functionalization of the Allyl Fragment in (+)- -Cadinol
作者:F. A. Valeev、I. P. Tsypysheva、A. M. Kunakova、O. Yu. Krasnoslobodtseva、O. V. Shitikova、L. V. Spirikhin、G. A. Tolstikov
DOI:10.1023/b:rujo.0000034967.56553.3e
日期:2004.3
Epoxidation, bromination, and iodination of the double bond in (+)-delta-cadinol under various conditions are accompanied by formation of 1,4- or 1,5-epoxy derivatives. By contrast, vicinal hydroxylation gives rise to "normal" products. Intramolecular cyclization of the resulting vicinal diols was studied.
Zabza,A. et al., Collection of Czechoslovak Chemical Communications, 1966, vol. 31, p. 3379 - 3382