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Pd/C-catalyzed, copper-free Sonogashira coupling: one-pot synthesis of 1-aryl-4-(2-phenylethynyl)[1,2,4]triazolo[4,3-a]quinoxalines in water

ABSTRACT: Copper-free, Pd/C-catalyzed, one-pot reaction of 2,3-dichloroquinoxaline with hydrazine hydrate, bromine, phenylacetylene, and a variety of aldehydes provides an efficient and direct method for the preparation of 1-aryl-4-(2-phenylethynyl)[1,2,4]triazolo[4,3-a]quinoxalines in water at 70 °...

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Detalles Bibliográficos
Autores principales: Bakherad, Mohammad, Jajarmi, Saeideh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4495046/
https://www.ncbi.nlm.nih.gov/pubmed/26166882
http://dx.doi.org/10.1007/s00706-012-0904-4