Nanosized MCM-41-SO3H material based on ordered mesoporous silica gel with covalently attached sulfonic acid groups was synthesized and used as acid catalyst for green synthesis of 2-substituted benzimidazole derivatives. Echo-friendly protocol, short reaction times, easy and quick isolation of the products, and excellent yields are the main advantages of this procedure.
基于有序介孔二氧化硅凝胶的纳米级MCM-41-SO3H材料,具有共价连接的磺酸基团,被合成并用作2-取代苯并咪唑衍生物的绿色合成酸催化剂。这种方法的主要优点是环保协议、反应时间短、产品易于快速分离和产率优异。