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开发了一种使用纳米Al2O3作载体,由四三苯基膦钯衍生的纳米钯催化剂催化的使用芳基重氮盐作原料的高效绿色Suzuki和Heck偶联反应来制备联苯类和芳基烯类化合物的方法.该反应体系以乙醇作反应溶剂,在空气中于25℃下,催化剂可高效催化芳基重氮盐分别与芳基硼酸和烯烃的Suzuki和Heck偶联反应,各类考察的反应底物都给出较高的收率,而且催化剂循环利用4次后,其催化活性和反应收率都没有明显降低.
An efficient green Suzuki and Heck coupling reaction using aryldiazonium salts as starting materials catalyzed by palladium nanoparticles derived from tetraphenylphosphine palladium with Nano-Al2O3 as support has been developed to prepare biphenyls and arylenes The reaction system using ethanol as the reaction solvent in air at 25 ℃, the catalyst can efficiently catalyze the aryl diazonium salt with aryl boronic acid and olefin Suzuki and Heck coupling reaction of various types of investigation The reaction substrate gave higher yield, and the catalyst was recycled 4 times, the catalytic activity and reaction yield were not significantly reduced.