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Updated: Jan 31, 2026

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Copper-Catalyzed Tandem Reactions of 2-Amine-[1,3,5]triazines with Nitriles
Li-Yu Zhang1, Chen Zhang1, Tao Wang2
1College of Pharmaceutical Science , Zhejiang University , Hangzhou 310058 , China.
Abstract:
Copper-catalyzed intermolecular annulation of 2-amine-[1,3,5]triazines and aryl nitriles for the synthesis of [1,2,4]triazolo[1,5- a][1,3,5]triazines via N-C bond formation and oxidative N-N coupling [oxidative 3 + 2 cyclization] is presented. A wide range of aryl nitriles, including electron-rich benzonitriles, electron-poor benzonitriles, 2-cyanothiophene, and 4-cyanopyridine, were all functionalized with 2-amine-[1,3,5]triazines. Furthermore, amidation of 2-amine-[1,3,5]triazines via Cu-catalyzed C-CN bond cleavage of phenylacetonitriles is also demonstrated. The reaction occurred in moderate to satisfactory yields and tolerated alkyl- or aryl-substituted 2-amine-[1,3,5]triazines. Aniline, aminopyridine, and aminopyrimidine also afforded the desired products.
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