Preparation and synthetic scope of 3-(4-methyl-2-R-pyrimidin-5-yl)-3-oxopropionic esters
作者:A. Yu. Potapov、A. V. Falaleev、Kh. S. Shikhaliev、G. V. Shatalov
DOI:10.1007/s11172-014-0720-6
日期:2014.9
A condensation of 2-R-5-acetyl-4-methylpyrimidines with dimethyl carbonate led to a number of 3-(2-R-4-methylpyrimidin-5-yl)-3-oxopropionic esters, which reacted with (piperidin-1-yl)carboxamidine and arylguanidines to give 2-R′-6-(2-R-4-methylpyrimidin-5-yl)-3H-pyrimidin-4-ones. A reaction of 3-(2-R-4-methylpyrimidin-5-yl)-3-oxopropionic esters with hydrazines led to the formation of 3-(2-R-4-methylpyrimidin-5-yl)-2-R″-1,2-dihydropyrazol-3-ones.