双羰基侧链取代喹喔啉－1，4－二氧化物的合成

Synthesis of Biscarbonyl Side Chain Substituted Quinoxaline-1,4-dioxide

应用改良的Ｂｅｉｒｕｔ反应合成了５个双羰基侧链取代喹喔啉－１，４－二氧化物（３ａ～３ｅ）。

Five biscarbonyl side chain substituted quinoxaline-1,4-dioxides,namely,2-anilinocarbonyl3-anilinocarbonylmethylquinoxaline-1,4-dioxide(3a),2-p-toluidinocarbonyl-3-toluidinocarbonylmethylquinoxaline-1,4-dioxide(3b),2-methoxycarbonyl-3 methoxycarbonylmethylquinoxaline-1,4-dioxide(3c),2-ethoxylcarbonyl-3-ethoxylcarbonylmethylquinoxaline-1,4-dioxide(3d)and 2-propoxycarbonyl-3-propoxycarbonylmethylquinoxaline-1,4-dioxide(3e)have been synthesized by the improved Beirut reaction.3a,3b,3d and 3e are new compounds.