New Approach to 1,4-Benzoxazin-3-ones by Electrochemical C−H Amination
作者:Lars Julian Wesenberg、Sebastian Herold、Akihiro Shimizu、Jun-ichi Yoshida、Siegfried R. Waldvogel
DOI:10.1002/chem.201701979
日期:2017.9.7
the synthesis of benzoxazinones requires transition‐metal catalysts and pre‐functionalized substrates such as arylhalides. However, the anodic C−H amination of phenoxy acetates offers a very efficient and sustainable access to these heterocycles. The presented electrochemical protocol can be applied to a broadscope of alkylated substrates. Even tert‐butyl moieties or halogen substituents are compatible