temperature. In addition, due to the presence of ammonium groups in the catalyst structure, water dispersibility of the catalyst was increased. More important, the catalyst was magnetically recovered and reused for up to six runs without any marked decrease of activity and selectivity. Finally, easy gram‐scale oxidation of methylphenyl sulfide as well as fast separation of catalyst and product makes the protocol
钨离子通过阴离子交换过程成功地加载到基于三嗪的
离子液体功能化的磁性纳米颗粒上。使用三嗪核生成
离子液体导致了大量WO 4 2-的固定化。所得催化剂在
硫化物与H 2 O 2氧化为亚砜中显示出高活性和选择性。在室温下作为绿色氧化剂。另外,由于在催化剂结构中存在
铵基,因此提高了催化剂的
水分散性。更重要的是,催化剂被磁性回收并重复使用多达六次,而活性和选择性均没有明显降低。最后,甲基苯
硫醚易于克级氧化,以及催化剂和产物的快速分离,使得该方案经济且在工业上适用。