Sequential 1,3-<i>N</i>- to <i>C</i>- and 1,3-<i>C</i>- to <i>C</i>-Migration of Sulfonyl Groups through the Synthesis of 1,4-Diazepines from the Aza-[5 + 2] Cycloaddition of Indoloazomethine Ylides
作者:Namrim Heo、Ilyong Jung、Dae Kyum Kim、Sang Hoon Han、Kooyeon Lee、Phil Ho Lee
DOI:10.1021/acs.orglett.0c02333
日期:2020.8.21
sequential 1,3-N- to C- and 1,3-C- to C-migration of sulfonyl groups through the synthesis of 1,4-diazepines from an operationally simple thermal aza-[5 + 2] cycloaddition reaction of indoloazomethine ylides with dialkyl acetylenedicarboxylates under mild conditions, leading to the formation of C-sulfonylated 1,4-diazepines.
本文描述了通过从操作简单的热氮杂-[5 + 2]环加成反应合成1,4-二氮杂s,磺酰基依次从1,3- N-到C-和1,3- C-到C-迁移。吲哚并甲亚胺基化物在温和条件下与乙炔二羧酸二烷基酯反应,导致形成C-磺酰化的1,4-二氮杂pine。