Abstract

Reactions of 6-amino-3,4-dihydro-2-methoxy-4-oxopyrimidine 1 and its 3-methyl derivative 2, with diethyl ethoxymethylenemalonate (EMME) are discussed in this paper. These reactions have been carried out in the following media: under fusion, ethanol, sodium methoxide/methanol, sodium ethoxide:ethanol and acetic acid media. In acetic medium, mixtures of products proceeding from C-alkylation and N-alkylation were obtained, while in the remaining conditions only products of N-alkylation were obtained.

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