Synthesis of <i>N</i>‐(<i>α</i>‐Alkoxyalkyl)benzotriazoles Catalyzed by Acidic Ionic Liquid at Room Temperature

Abstract

Abstract N ‐( α ‐Alkoxyalkyl)benzotriazoles were synthesized via the condensation of benzotriazole with various aldehydes and alcohols catalyzed by acidic ionic liquid [hmim]HSO 4 at room temperature. The yield was up to 99%. This novel method was effective when triethoxymethane was utilized instead of alcohols. Moreover, acidic ionic liquid could be reused easily with no significant degradation of its catalytic activity.