Silica Sulfuric Acid (SSA)/Polyethylene Glycol (PEG) as a Recyclable System for the Synthesis of Quinoxalines and Pyrazines

T Huang, D Jiang, J Chen, W Gao, J Ding…

文献索引：Huang, Tieqiang; Jiang, Danna; Chen, Jiuxi; Gao, Wenxia; Ding, Jinchang; Wu, Huayue Synthetic Communications, 2011 , vol. 41, # 22 p. 3334 - 3343

全文：HTML全文

被引用次数: 5

摘要

Abstract An efficient and facile method has been developed for the condensation of 1, 2- diamines with α-hydroxyketones in polyethylene glycol (PEG) to quinoxalines and pyrazines with good yields in the presence of silica sulfuric acid (SSA). The important features of the methodology are simple operations, environmentally friendliness, and no requirement for metal catalysts. Additionally, the catalyst system (SSA/PEG) could be recovered easily and ...