Comparative Study of the Chemoselectivity and Yields of the Synthesis of<i>N</i>-Alkyl-4-(trihalomethyl)-1<i>H</i>-pyrimidin-2-ones
作者:Nilo Zanatta、Débora Faoro、Liana da S. Fernandes、Patrícia B. Brondani、Darlene C. Flores、Alex F. C. Flores、Helio G. Bonacorso、Marcos A. P. Martins
DOI:10.1002/ejoc.200800822
日期:2008.12
paper reports a comparativestudy of the chemoselectivity and yields of the synthesis of N-alkyl-4-(trihalomethyl)-1H-pyrimidin-2-ones carried out by the cyclocondensation of 4-alkoxy-1,1,1-trihalo-3-alken-2-ones (enones) with methyl- and allylureas with the N-alkylation of 4-(trihalomethyl)-1H-pyrimidin-2-ones with methyl iodide and allyl bromide. To determine the chemoselectivity of the products