Stereoselective Synthesis of Dispirooxindoles Incorporating Pyrrolo[2,1-a]isoquinoline via [3+2] Cycloaddition of Azomethine Ylides with a Thiazolo[3,2-a]indole Dipolarophile
作者:Ani Deepthi、Noble V. Thomas、C. B. Meenakshy、Sruthi S. Leena
DOI:10.1055/a-1777-2423
日期:2022.6
AbstractHighly regio- and stereoselective synthesis of dispiropyrrolo[2,1-a]isoquinoline-oxindoles have been developed by the one-pot three component reaction of isatins, 1,2,3,4-tetrahydroisoquinoline (THIQ), and a thiazolo[3,2-a]indole derivative. The reaction proceeds regioselectively through an exo-Re face approach of the in situ generated tetrahydroisoquinolium ylides towards the dipolarophile
摘要通过靛红、1,2,3,4-四氢异喹啉 (THIQ) 和噻唑啉 [3 ,2-a]吲哚衍生物。该反应通过原位产生的四氢异喹啉叶立德向亲偶极体的外-Re面方法区域选择性地进行,以优异的产率和立体选择性产生相应的[3+2]环加合物。