[3+2] Cyclization of Azidotrimethylsilane with Quinoxalin‐2(1<i>H</i>)‐Ones to Synthesize Tetrazolo[1,5‐<i>a</i>]quinoxalin‐4(5<i>H</i>)‐Ones

Abstract

Abstract A convenient and efficient protocol for the synthesis of thetetrazolo[1,5‐ a ]quinoxalin‐4(5 H )‐ones via copper‐catalyzed [3+2] cyclization of azidotrimethylsilane with quinoxalin‐2(1 H )‐ones under mild conditions has been disclosed. This practical protocol is compatible with a variety of functional groups and provides an access to functionalized tetrazolo[1,5‐ a ]quinoxalin‐4(5 H )‐ones from readily available and safe starting materials. magnified image