Electrochemical Intramolecular CH Amination: Synthesis of Benzoxazoles and Benzothiazoles
作者:Tatsuya Morofuji、Akihiro Shimizu、Jun‐ichi Yoshida
DOI:10.1002/chem.201406398
日期:2015.2.16
A new method for metal‐free intramolecular CH amination has been developed. Electrochemical oxidation of 2‐pyrimidyloxybenzenes and 2‐pyrimidylthiobenzenes, which can be easily prepared from phenols and thiophenols, respectively, followed by the treatment of the resulting pyrimidinium ions with piperidine gives 2‐aminobenzoxazoles and 2‐aminobenzothiazoles, respectively.
已经开发出一种新的无金属分子内CH胺化方法。分别可由苯酚和硫酚轻松制得的2-嘧啶基氧基苯和2-嘧啶基苯硫醚进行电化学氧化,然后用哌啶处理所得的嘧啶鎓离子,分别制得2-氨基苯并恶唑和2-氨基苯并噻唑。