SBA-15 functionalized sulfonic acid containing a confined ionic liquid has been introduced to convert various carbonyl compounds to their corresponding dithioacetals and dithioketals at room temperature and under solvent-free conditions. It was found that coating SBA-15-Pr-SO3H with the hydrophobic and acidic ionic liquid [OMIm]HSO4 at a loading of 0.8 mL g−1 of silica, afforded paths for faster mass transfer
引入了一种含有受限
离子液体的SBA-15官能化
磺酸的新应用,可在室温和无溶剂条件下将各种羰基化合物转化为其相应的二
硫缩醛和二
硫缩酮。发现以0.8 mL g -1的
二氧化硅负载疏
水性和酸性
离子液体[OMIm] HSO 4涂覆SBA-15-Pr-SO 3 H ,提供了将原料更快地质量转移到SBA-15-Pr-SO 3 H中的途径。活动站点。同时,由于酸性位点的协同作用机理,它也可能增加布朗斯台德酸的强度。催化剂可以很容易地回收和再利用至少八个反应循环,而其催化活性只有轻微的损失。