sesquithuriferol 在
jones reagent 作用下,
以
丙酮 为溶剂,
以20 mg的产率得到sesquithuriferone
参考文献:
名称:
Sesquiterpenes from Juniperus thurifera L. Stereochemistry in Unusual Cedrane and Duprezianane Series
摘要:
The analysis of the essential oil from the wood of Juniperus thurifera has provided the isolation of seven new natural products, including the first described examples of 2-epi-cedranes and 2-epi-duprezianane. The co-occurrence in the oil of the three cedrane-type arrangements (cedrane, 1,7-diepi-cedrane and 2-epi-cedrane) has permitted, after a thorough 2D NMR analysis the unequivocal spectroscopical assignment of each of the three cedrane skeletons, and subsequently the development of an unambiguous method for establishing their stereochemistries. A useful pattern for distinguishing between the two duprezianane stereochemistries is also given. (C) 2000 Elsevier Science Ltd. All rights reserved.