Cu-Catalyzed Aerobic Oxidative Cyclization of Guanidylpyridines and Derivatives
2015
Bartels, Björn | Bolas, Conor Gordon | Cueni, Philipp | Fantasia, Serena | Gaeng, Nicolas | Trita, Andrada Stefania
A new method for the straightforward synthesis of 2-amino-[1,2,4]triazolo[1,5-a]pyridines and derivatives is presented. The target products are synthesized in high yields from guanidylpyridines and analogues via copper-catalyzed N–N coupling. The present methodology shows a wide scope, tolerating not only different substituents on the pyridine ring but also different heterocylic rings such as pyrazines, pyrimidines, and pyridazines.
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