1603815-77-5Relevant academic research and scientific papers
Copper-catalyzed cascade cyclization reaction of 2-haloaryltriazenes and sodium azide: Selective synthesis of 2 H-benzotriazoles in water
Shang, Xiaobo,Zhao, Shixian,Chen, Wanzhi,Chen, Chao,Qiu, Huayu
, p. 1825 - 1828 (2014/03/21)
A new approach to the synthesis of 2 H-benzotriazoles is described. This strategy is based on the copper-catalyzed Ci￡N coupling of 2-haloaryltriazenes or 2-haloazo compounds with sodium azide and the intramolecular addition of nitrene to N=N bonds. This approach allows the synthesis of various N-amino- and N-aryl-2 H-benzotriazoles in water, in good to excellent yields. The procedure is simple and the starting materials and catalyst are easily available, offering a practical and convenient synthetic route to 2-substituted benzotriazoles.
