Synthesis of Trisubstituted 1,2,4-Triazoles from Azlactones and Aryldiazonium Salts by a Cycloaddition/Decarboxylation Cascade
作者:Xiao-Ye Yu、Wen-Jing Xiao、Jia-Rong Chen
DOI:10.1002/ejoc.201901467
日期:2019.11.10
A metal‐free cycloaddition/decarboxylation of azlactones and aryldiazonium salts, which provides efficient and facile access to privileged 1,3,5‐trisubstituted 1,2,4‐triazoles. is reported. Notably, aryldiazonium salts serve as two‐nitrogen unit rather than the sources of aryl radicals in this transformation, which provides an alternative class of reagents for the construction of N‐heterocycles.