Synthetic Studies toward 1,2,3,3a,4,8b-Hexahydropyrrolo[3,2-<i>b</i>]indole Core. Unusual Fragmentation with 1,2-Aryl Shift
作者:Alexander V. Aksenov、Elena V. Aleksandrova、Dmitrii A. Aksenov、Anna A. Aksenova、Nicolai A. Aksenov、Mezvah A. Nobi、Michael Rubin
DOI:10.1021/acs.joc.1c02753
日期:2022.1.21
2-aryl shift to afford 3-hydroxyindolin-2-ones. On the other hand, the reactions for N-alkyl derivatives of oxoindolines took the expected route by only providing 1,2,3,3a,4,8b-hexahydropyrrolo[3,2-b]indoles.
研究了 2-(3-oxindolin-2-yl) 乙腈的碱辅助转化。出乎意料的是,具有未受保护的氮原子的底物的尝试反应伴随着 2-芳基乙腈的不寻常挤出,随后发生 1,2-芳基转移以提供 3-羟基二氢吲哚-2-酮。另一方面,氧代二氢吲哚的N-烷基衍生物的反应采取了预期的路线,仅提供1,2,3,3a,4,8b-六氢吡咯并[3,2- b ]吲哚。