Formation of furo[3,2-c]quinolone-2-carbonitriles and 4-oxo-4,5-dihydrofuro[3,2-c]quinolone-2-carboxamides from reaction of quinoline-2,4-diones with 2-[bis(methylthio)methylene]malononitrile
作者:Ashraf A. Aly、Esam A. Ishak、Ahmed M. Shwaky、Asmaa H. Mohamed
DOI:10.1007/s00706-019-02541-0
日期:2020.2
AbstractQuinoline-2,4-diones reacted with 2-[bis(methylthio)methylene]malononitrile in DMF/Et3N to produce 3-(methylthio)-4-oxo-4,5-dihydrofuro[3,2-c]quinolone-2-carbonitriles and 3-(methylthio)-4-oxo-4,5-dihydrofuro[3,2-c]quinolone-2-carboxamides in state of 2-imino-substituted 4-(methylthio)-5,6-dihydro-2H-pyrano[3,2-c]quinolone-3-carbonitriles. The structures of all new products were proved using NMR
摘要喹啉-2,4-二酮与2- [双(甲硫基)亚甲基]丙二腈在DMF / Et 3 N中反应生成3-(甲硫基)-4-氧代-4,5-二氢呋喃[3,2- c ]喹诺酮-2-腈和3-(甲硫基)-4-氧代-4,5-二氢呋喃[3,2 - c ]喹诺酮-2-羧酰胺处于2-亚氨基取代的4-(甲硫基)-5,6-的状态二氢-2 H-吡喃并[3,2 - c ]喹诺酮-3-腈。所有新产品的结构均使用NMR,IR和质谱数据证明。还讨论了反应的可能机理。 图形摘要