作者:D.M. Manidhar、K. Uma Maheswara Rao、N. Bakthavatchala Reddy、Ch. Syama Sundar、C. Suresh Reddy
DOI:10.5012/jkcs.2012.56.4.459
日期:2012.8.20
8-Formyl-4-Methyl-7-Hydroxy Coumarin Derivatives were synthesized via Penchem condensation followed by Duffs reaction. Treatment of this with N,N-di substituted cyano acetamides in the presence of piperdine afforded New 8-Formyl-4-Methyl-7-Hydroxy Coumarin Derivatives (7a-o). Their structures were characterized by IR, $^1H$ and $^13}C$ NMR and Mass spectral and elemental analysis data.
8-甲醛-4-甲基-7-羟基香豆素衍生物通过Penchem缩合反应及Duffs反应合成。将其与N,N-二取代氰基乙酰胺在哌啶存在下处理,得到了新的8-甲醛-4-甲基-7-羟基香豆素衍生物(7a-o)。其结构通过红外光谱、^1H NMR、^13C NMR、质谱以及元素分析数据进行了表征。