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- Title
Copper-Catalyzed Cascade Cyclization Reaction of 2-Haloaryltriazenes and Sodium Azide: Selective Synthesis of 2 H-Benzotriazoles in Water.
- Authors
Shang, Xiaobo; Zhao, Shixian; Chen, Wanzhi; Chen, Chao; Qiu, Huayu
- Abstract
A new approach to the synthesis of 2 H-benzotriazoles is described. This strategy is based on the copper-catalyzed CN coupling of 2-haloaryltriazenes or 2-haloazo compounds with sodium azide and the intramolecular addition of nitrene to NN 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.
- Subjects
BENZOTRIAZOLE; COPPER; RING formation (Chemistry); SODIUM azide; CHEMICAL synthesis; CHEMICAL yield
- Publication
Chemistry - A European Journal, 2014, Vol 20, Issue 7, p1825
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201303712