An efficient synthesis of quinoxalines catalyzed by monoammonium salt of 12-tungstophosphoric acid
Open Access
- 31 December 2011
- journal article
- Published by European Journal of Chemistry in European Journal of Chemistry
- Vol. 2 (4), 495-498
- https://doi.org/10.5155/eurjchem.2.4.495-498.413
Abstract
Monoammonium salt of 12-tungstophosphoric acid [(NH4)H2PW12O40] catalyst was used for the synthesis of biologically important quinoxaline derivatives in excellent yields from various aromatic 1,2-dicarbonyl and 1,2-diamines. The methodology has the advantages of mild reaction conditions with simple workup procedure, even for the synthesis of quinoxaline derivatives from sterically hindered diamine.Keywords
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