84439-83-8Relevant academic research and scientific papers
TRANSFORMATIONS OF SUBSTITUTED 5-AMINOPYRIMIDINES UNDER CONDITIONS OF THE DIAZOTIZATION
Nemeryuk, Michal P.,Sedov, Andrej L.,Safonova, Tamara S.,Cerny, Antonin,Krepelka, Jiri
, p. 215 - 233 (2007/10/02)
Reaction of nitrous acid with 4-substituted and 4,6-disubstituted 5-aminopyrimidines Ia-In produces 4-substituted and 4,5-disubstituted 1,2,3-triazoles IIa-IIv, resp.Under similar conditions, 2,5-diaminopyrimidines XIIa-XIId give N(7)-oxides of 2-amino-4-aralkylthiopyrimido-1,2,3-triazines XIIIa-XIIId, and 5-amino-4-chloropyrimidines In and X give 2-diazocyanoacetamides XIa and XIb, resp.Also described are syntheses of 5-formylaminopyrimidines XVa-XVg from glycine ethyl ester via sodium salt XVI.
