191230-77-0Relevant academic research and scientific papers
A new efficient route to imidazo[4,5-c]pyrazol-5-ones
Vicentini, Chiara B.,Veronese, Augusto C.,Manfrini, Maurizio
, p. 629 - 632 (1997)
The synthesis of imidazo[4,5-c]pyrazol-5-ones (6) is reported. 5-Amino-4-ethoxycarbonylaminopyrazoles 3a-g when heated at 200°for 2 hours afford 6a-g. In a similar manner imidazo[4,5-c]pyrazol-5-one (6a) is readily obtained from 4-amino-5-ethoxycarbonylaminopyrazole (5a).
