205585-22-4Relevant academic research and scientific papers
A new approach to fused 1,2-diazepines by cyclization of enhydrazines with α- and β-keto esters
Yamasaki, Tetsuo,Nishida, Kaoru,Okamoto, Yoshinari,Okawara, Tadashi,Furukawa, Mitsuru
, p. 315 - 327 (2007/10/03)
The cyclization of 6-(1,2-diethoxycarbonylethylidene)hydrazino-1,3-dimethyluracil (3) and 6-(1,2-diethoxycarbonylethylidene)hydrazino-3-methyl-2-methylthiopyrimidin-4(3H) -one (8) in the presence of polyphosphoric acid (PPA) provided 2,5-dihydropyrimido[4
