Visible Light-Induced Pericyclic Cascade Reaction for the Synthesis of Quinolinone Derivatives with an Oxabicyclo[4.2.0]octene Skeleton
作者:Guangxing Pan、Shaoheng Qin、Dawen Xu、Fritz E. Kühn、Hao Guo
DOI:10.1021/acs.orglett.1c00642
日期:2021.4.16
A photoinduced pericyclic cascade reaction has been developed to afford oxabicyclo[4.2.0]octenes. Mechanistic studies show that this reaction undergoes [2 + 2]-photocycloaddition, base-promoted elimination, retro-4π-electrocyclization, [1,5]-H shift, and 4π-electrocyclization procedures. This reaction features wide substrate scope, good functional group tolerance, and excellent diastereoselectivity
已开发出光诱导的环周级联反应以提供氧杂环[4.2.0]辛烯。机理研究表明,该反应经历了[2 + 2]-光环加成,碱促进的消除,逆向4π-电环化,[1,5] -H移位和4π-电环化程序。该反应具有广泛的底物范围,良好的官能团耐受性和出色的非对映选择性。