A series of 1,3-oxazin-6-one derivatives has been synthesized upon treatment of N-unsubstituted amides with chlorocarbonyl phenyl ketene under reflux in toluene for several minutes. In this simple way, 2,5-disubstituted derivatives of 1,3-oxazin-6-ones have been obtained in high yields.
用
氯羰基苯基
乙烯酮在
甲苯中回流几分钟处理 N-未取代酰胺,合成了一系列 1,3-oxazin-6-one 衍
生物。以这种简单的方式,以高产率获得了 1,3-oxazin-6-ones 的 2,5-二取代衍
生物。