Synthesis of 2-Aryl-1,2,3-triazoles by Oxidative Cyclization of 2-(Arylazo)ethene-1,1-diamines: A One-Pot Approach
作者:Kseniya D. Gavlik、Svetlana G. Lesogorova、Ekaterina S. Sukhorukova、Julia O. Subbotina、Pavel A. Slepukhin、Enrico Benassi、Nataliya P. Belskaya
DOI:10.1002/ejoc.201600256
日期:2016.5
A one-pot approach for the synthesis of 2-aryl-5-amino-1,2,3-triazoles is reported. This approach involves a tandem nucleophilic addition of alkylamines to hydrazonoyl cyanides and in situ oxidative cyclization of the resulting 2-(arylazo)ethene-1,1-diamines in the presence of copper(II) acetate and air. The described one-pot procedure is characterized by good yields, excellent selectivity, methodical
报道了一种用于合成 2-芳基-5-氨基-1,2,3-三唑的一锅法。该方法涉及将烷基胺串联亲核加成到腙酰氰化物,并在乙酸铜 (II) 和空气存在下原位氧化环化所得 2-(芳基偶氮) 乙烯-1,1-二胺。所描述的一锅法的特点是产量高、选择性好、方法简单,并且使用容易获得的化学品。该方法应用于2-芳基-1,2,3-三唑的克级合成。