微波辐射下ZrO_2/S_2O_8^(2-)催化合成芳香磺酰亚胺

A Solvent-free Procedure for Synthesis of N-Sulfonylimines Catalyzed by ZrO_2/S_2O_8^(2-) Solid Superacid Under Microwave Irradiation

微波辐射无溶剂条件下,以ZrO2/S2O82-固体超强酸为催化剂,使芳香醛与芳香磺酰胺作用合成了一系列芳香磺酰亚胺类化合物,收率为75%～94%.此方法具有操作简便,催化剂价廉易得、活性高、对环境友好、可回收重复使用等优点.

A manipulative simple and rapid procedure for the synthesis of N-sulfonylimines from aldehydes with sulfonamides is described. The reaction is conducted under microwave irradiation conditions in the absence of solvent using ZrO_2/S_2O_8^(2-) solid superacid as catalyst in 75%～94% yields. This solid superacid is cheap, highactive, green and reusable.