A new bismuth(V) oxidative catalytic system has been developed and applied for the conversion of hydrazones into diazo compounds. With the use of low catalytic amounts of Ph3Bi and AcOH with NaBO3·H2O as a terminal oxidant, the in situ formation of Ph3Bi(OAc)2 is capable of oxidizing hydrazones in excellent yields. The reaction was applied for the synthesis of diazocarbonyls and 2,2,2-trifluoromethyl
开发了一种新的铋(V)氧化催化体系,并将其用于将腙转化为重氮化合物。使用低催化量的Ph 3 Bi 和AcOH,NaBO 3 ·H 2 O 作为末端氧化剂, Ph 3 Bi(OAc) 2的原位形成能够以优异的收率氧化腙。该反应用于合成重氮羰基化合物和 2,2,2-三氟甲基重氮烷烃,收率良好。