One-step route to tricyclic fused 1,2,3,4-tetrahydroisoquinoline systems via the Castagnoli–Cushman protocol
作者:Aleksandar Pashev、Nikola Burdzhiev、Elena Stanoeva
DOI:10.3762/bjoc.16.121
日期:——
4-dihydroisoquinolines with glutaric anhydride, its oxygen and sulfur analogues was investigated as a one-step approach to the benzo[a]quinolizidine system and its heterocyclic analogs. An extension towards the pyrrolo[2,1-a]isoquinoline system was achieved with the use of succinic anhydride. The results are evidence of an unexplored method for the access of the aforementioned tricyclic annelated systems incorporating
3,4-二氢异喹啉与戊二酸酐,其氧和硫类似物的Castagnoli-Cushman反应作为一步法研究了苯并[ a ]喹喔啉系统及其杂环类似物。延伸到吡咯并[2,1- a使用琥珀酸酐可实现]异喹啉体系。结果证明了一种未探索的方法,用于引入包含桥头氮原子的上述三环退火系统。通过1D和2D NMR技术确定了新化合物的结构和相对构型。1-甲基二氢异喹啉与戊二酸,二乙醇酸和琥珀酸酐之间的反应产生出乎意料的含有环外双键的异喹啉衍生物。制备的化合物具有成为未来合成生物活性分子的基础。