Synthesis of N -unsubstituted 1,2,3-triazoles via aerobic oxidative N -dealkylation using copper(II) acetate
作者:Hyojin Cha、Kyongkyu Lee、Dae Yoon Chi
DOI:10.1016/j.tet.2017.03.068
日期:2017.5
copper-catalyzed aerobic oxidative CN bond cleavage reaction was developed for the synthesis of 4-substituted-NH-1,2,3-triazoles. Diverse β-ketotriazoles derivatives, which are the starting materials for the aerobic oxidative CN bond cleavage reaction, were prepared from nine aryl and seven alkyl alkynes and α-azidoacetophenone by a copper(I)-catalyzed [3 + 2]cycloaddition reaction. The aerobic oxidation of α-(1
开发了铜催化的需氧氧化C N键裂解反应,用于合成4-取代的NH -1,2,3-三唑。通过铜(I)催化的[3 + 2]环加成反应,由9个芳基和7个烷基炔烃和α-叠氮苯乙酮制备了多种β-酮三唑衍生物,这些化合物是好氧氧化C N键裂解反应的起始原料。在中性条件下,在氧气存在下,使用催化量的乙酸铜(II),对α-(1,2,3-三唑-1-基)苯乙酮进行好氧氧化,可以高收率得到标题化合物。