Selective acylation of 5-nitro- and 5-ethoxycarbonyl-4,6-diaryl-3,4-dihydropyrimidin-2(1H)-ones
作者:V. F. Sedova、O. P. Shkurko
DOI:10.1134/s1070428010110163
日期:2010.11
The acetylation and chloroacetylation of 5-nitro- and 5-ethoxycarbonyl-substituted 4,6-diaryl-3,4-dihydropyrimidin-2(1H)-ones proceeds regioselectively at the N3 atom of the heterocycle whereas the acetylation of the 5-aryloxy-substituted analog results in a mixture of N1- and N3-acetylated regioisomers.