Synthetic studies on isoschizogamine: construction of [3.3.1] bicyclic aminal core by using oxidative skeletal rearrangement
作者:Hirofumi Ueda、Akihiro Takada、Hidetoshi Tokuyama
DOI:10.1016/j.tetlet.2013.10.083
日期:2013.12
aminal functionality was constructed by oxidative skeletal rearrangement of a 1,2-diaminoethene derivative. The 1,2-diaminoethane was prepared by palladium-catalyzed allylation at the 4a position of a 1,2,3,4-tetrahydro-β-carboline derivative and subsequent lactam formation. After the oxidative skeletal rearrangement using dimethyldioxirane, the allyl group was removed by a three-step sequence to provide
通过1,2-二氨基乙烯衍生物的氧化骨架重排,构建了具有氨基官能团的异chi唑胺的四环核心结构。的1,2-二氨基乙烷在4制备由钯催化的烯丙基化一个1,2,3,4-四氢β咔啉衍生物和随后的内酰胺形成的位置。在使用二甲基二环氧乙烷烷氧化骨架重排后,通过三步顺序除去烯丙基,以提供具有氨基官能的异is唑胺的四环核心骨架。