Substituted 3-and 5-formylpyridin-2-ones in the synthesis of 1-aryl-1, 6-naphthyridinone derivatives
作者:M. I. Medvedeva、N. Z. Tugusheva、L. M. Alekseeva、M. I. Evstratova、S. S. Kiselev、V. V. Chernyshev、G. V. Avramenko、V. G. Granik
DOI:10.1007/s11172-009-0325-7
日期:2009.11
the action of various CH acids. A new approach to the synthesis of 4-(4-fluoroanilino)-5-formyl-2-oxo-1,2-dihydropyridine-3-carbonitrile using dimethylformamide diisopropylacetal under mild conditions was developed. The comparative reactivity of the formyl group in the reactions of 4-arylamino-5-formyl-2-oxo-1,2-dihydropyridine-3-carbonitriles and in 4-arylamino-2-oxo-1,2-dihydropyridine-3-carb-aldehydes
新的 1-aryl-6-[2-(二甲基氨基)vinyl]4-oxo-1,4-dihydropyrimidine-5-carbonitriles 和 4-arylamino-2-oxo-1,2-dihydropyridine-3-carbonitriles 含吸电子苯环中的取代基由烯氨基酰胺和二甲基甲酰胺二烷基缩醛合成。研究了反应中各种二甲基甲酰胺缩醛对3-(4-氯-苯胺基)-2-氰基-5-(二甲氨基)五-2,4-二烯酸N-(二甲氨基)亚甲基酰胺产率的影响这些缩醛与 3-(4-氯苯胺)-2-氰基巴豆酰胺。新的 4-arylamino-5-formyl-2-oxo-1,2-dihydropyridine-3-carbonitriles 和 4-arylamino-2-oxo-1,2-dihydropyridine-3-carbaldehydes 在苯环中含有吸电子取代基合成的。后一种化合物被转化为新的取代