Amination of 4,6- and 2,4-dichloropyrimidines with polyamines
作者:S. M. Kobelev、A. D. Averin、A. K. Buryak、I. P. Beletskaya
DOI:10.1134/s1070428010080191
日期:2010.8
Amination of a double excess of 4,6-dichloropyrimidine with various diamines in the presence of cesium carbonate in boiling dioxane quantitatively afforded the corresponding N,N′-bis(6-chloropyrimidin-4-yl) derivatives, while its reactions with tri- and tetraamines gave N,N′,N″-tris- and N,N′,N″,N‴-tetrakis(6-chloropyrimidin-4-yl) derivatives. Equimolar amounts of 2,4-dichloro- or 4,6-dichloropyrimidine