作者:Shanta S. Bhar、M. M. V. Ramana
DOI:10.1021/jo049616n
日期:2004.12.1
New types of concerted domino acylation−cycloalkylation/alkylation−cycloacylation reactions have been described. These processes promoted by methanesulfonic acid−phosphorus pentoxide and concentrated H2SO4, respectively, provide efficient, elegant, and expeditious routes for biologically active naturally occurring diterpenoids, namely (±)-ferruginol (1), (±)-nimbidiol (2), (±)-nimbiol (3), (±)-totarol
已经描述了新型的协调一致的多米诺酰化-环烷基化/烷基化-环酰化反应。分别由甲磺酸-五氧化二磷和浓H 2 SO 4促进的这些过程,为具有生物活性的天然二萜类化合物,即(±)-ferruginol(1),(±)-nimbidiol(2),(±)-丁二酚(3),(±)-戊二醇(4)和ar-松香三烯(5)。