Verfahren zur Herstellung von 2,4-Dichlorpyrimidin-5-carbonsaeurechlorid

摘要

1,182,086. 2,4 - Dichloropyrimidine - 5 - carboxylic acid chloride. J. R. GEIGY A.G. 19 Sept., 1968 [20 Sept., 1967], No. 44500/68. Heading C2C. 2,4 - Dichloropyrimidine - 5 - carboxylic acid chloride is obtained by refluxing uracil-5-carboxylic acid with (a) PCl 3 and Cl 2 or (b) PCl 5 , in a reaction medium containing POCl3.