A Comprehensive Comparison Metal Salts Effect on Time and Yield of Quinoxalines Synthesis

A new one-pot three-component and highly efficient approach for the synthesis of quinoxaline derivatives was investigated. This was achieved via two methods from the reaction of α-hydroxy ketones or 1,2-dicarbonyl compounds with o-phenylenediamine in the presence of catalytic amount of many metal salt catalysts especially Zn(OAc)2 and mixture of Mn(OAc)2 and Zn(OAc)2.