A Facile One-Pot Synthesis of
Substituted Pyridine-2,4(1<i>H</i>,3<i>H</i>)-diones from Acyl(carbamoyl)ketene <i>S</i>,<i>S</i>-Acetals
作者:Dewen Dong、Yunhui Li、Wenliang Li、Rui Zhang、Yang Zhou
DOI:10.1055/s-0028-1083168
日期:——
A facile and efficient one-pot synthesis of substituted pyridine-2,4(1H,3H)-diones has been developed. Subjected to N,N-dimethylformamide dimethyl acetal (DMFDMA) in N,N-dimethylformamide at 120 ˚C, a series of acyl(carbamoyl)ketene S,S-acetals were converted into the corresponding substituted pyridine-2,4(1H,3H)-diones in high yields.
已经开发了一种简便有效的取代吡啶-2,4(1H,3H)-二酮的一锅法合成方法。在 N,N-二甲基甲酰胺中于 120 ˚C 经受 N,N-二甲基甲酰胺二甲基缩醛 (DMFDMA),一系列酰基(氨基甲酰基)烯酮 S,S-缩醛转化为相应的取代吡啶-2,4(1H, 3H)-二酮的高产率。