
%0 Journal Article
%A Evans, RF 
%A Robertson, AV 
%T The reaction of 4-Amino-5-aminomethyl-2-methylpyrimidine with amidine salts
%J Australian Journal of Chemistry
%D 1973/07/01
%V 26
%N 7
%P 1599-1605
%K 
%R https://doi.org/10.1071/CH9731599
%U https://www.publish.csiro.au/paper/CH9731599 
%X Treatment of 4-amino-5-aminomethyl-2-methylpyrimidine with formamidine salts yields not the expected dihydropyrimidopyrimidine, but rather its ring-opened hydrate, 4-amino-5-formamidomethyl-2-methylpyrimidine. Other workers had previously prepared the latter compound by other methods, but had assigned a wrong structure. The present structure determination is based mainly on i.r., N.M.R., and mass spectrometric analysis, as well as examination of the corresponding acetamido series. Mass spectra include a noteworthy fragmentation process, expulsion of neutral, even-electron NH. 
