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报道了一种负载钯纳米颗粒催化多种芳基酯与季铵盐经由两次C—N键活化的,选择性合成酰胺的胺解反应.在这个反应中,Pd/γ-Al_2O_3催化剂表现出卓越的催化活性和空气中至少五次循环的重复利用性.试验结果表明季铵盐的第一次C—N键断裂得到卤代烷和三级胺,第二次C—N键断裂是通过产生亚胺离子中间体完成的.
Reported a palladium catalyzed amidation of a variety of aryl esters and quaternary ammonium salts activated by two C-N bonds catalyzed by selective synthesis of amides.In this reaction, the Pd / γ-Al 2 O 3 catalyst showed Excellent catalytic activity and air recycling at least five cycles.The results show that the first quaternary ammonium salt C-N bond was broken alkyl halide and tertiary amine, the second C-N bond is broken through the generation of Asia Amine ion intermediates completed.