Tandem Anionic oxy‐Cope Rearrangement/Oxygenation Reactions as a Versatile Method for Approaching Diverse Scaffolds
作者:Michal Šimek、Kateřina Bártová、Radek Pohl、Ivana Císařová、Ullrich Jahn
DOI:10.1002/anie.201916188
日期:2020.4.6
Tandem anionic oxy‐Cope rearrangement/radical oxygenation reactions provide δ,ϵ‐unsaturated α‐(aminoxy) carbonyl compounds, which serve as convenient precursors to diverse compound classes. Functionalized carbocycles are accessible by very rare all‐carbon 5‐endo‐trig cyclizations, but also common 5‐exo‐trig radical cyclizations, based on the persistent radical effect. The tandem reactions can be further
串联阴离子氧对付重排/自由基氧合反应可提供δ,β-不饱和α-(氨氧基)羰基化合物,可作为各种化合物类别的便捷前体。功能化的碳环是通过访问非常罕见的全碳5周内-trig的环化反应,但也常见5-外-trig自由基环化的基础上,持久根治的效果。可以通过高度非对映选择性烯丙基化或还原步骤进一步扩展串联反应,从而得到复杂的骨架。