An efficient and simple methodology for the synthesis of 2-amino-4-(N-alkyl/arylamino)-6-chloropyrimidines
作者:Khalid Mohammed Khan、Sarosh Iqbal、Muhammad Arslan Bashir、Nida Ambreen、Shahnaz Perveen、Wolfgang Voelter
DOI:10.1016/j.tetlet.2015.01.153
日期:2015.3
In this study, twenty-nine 2-aminopyrimidine derivatives are synthesized in good to excellent yields by fusing 2-amino-4,6-dichloropyrimidine with different amines in the presence of triethylamine without using any solvent or catalyst. Nucleophilic substitution reactions of 2-amino-4,6-dichloropyrimidine with amines have also been performed in ethanol. Comparisons of the yields and reaction times for both solvent and solvent-free conditions have shown that the newly developed solvent-free protocol is high yielding, more efficient, and simpler compared to conventional methods. (C) 2015 Elsevier Ltd. All rights reserved.
Basford et al., Journal of the Chemical Society, 1947, p. 1354,1360