Silica-Gel–Catalyzed Efficient Synthesis of Quinoxaline Derivatives Under Solvent-Free Conditions
作者:Ganesh Chandra Nandi、Subhasis Samai、Ram Kumar、M. S. Singh
DOI:10.1080/00397910903576685
日期:2011.1.25
Quinoxalinederivatives have been prepared in good to excellent yields using silica gel as catalyst from various 1,2-diketones and 1,2-diamines undersolvent-freeconditions for the first time. The advantages of this method are short reaction time, reaction simplicity, convenient workup procedure, and purification of compounds by a nonchromatographic method.