Functionalized Hexahydropyrrolo[2,1‐
<i>b</i>
]oxazoles from Catalyst‐Free Annulation of Δ
<sup>1</sup>
‐Pyrrolines with Electron‐Deficient Propargylic Alcohols
作者:Ludmila A. Oparina、Dmitrii A. Shabalin、Anastasiya G. Mal'kina、Nikita A. Kolyvanov、Lyudmila A. Grishchenko、Igor' A. Ushakov、Alexander V. Vashchenko、Boris A. Trofimov
DOI:10.1002/ejoc.202000582
日期:2020.7.23
Catalyst‐free annulation of Δ1‐pyrrolines with electron‐deficient propargylic alcohols was demonstrated allowing the formation of functionalized hexahydropyrrolo[2,1‐b ]oxazoles in good to excellent yields.
证实了无电子的炔丙基醇对Δ1-吡咯啉的无催化剂环化反应,可以形成官能化的六氢吡咯并[2,1- b ]恶唑,收率高至优异。