191230-70-3Relevant academic research and scientific papers
Synthesis of a novel series of imidazo[4,5-c]pyrazole derivatives and their evaluation as herbicidal agents
Vicentini, Chiara B.,Manfrini, Maurizio,Mazzanti, Manuela,Scatturin, Angelo,Romagnoli, Carlo,Mares, Donatella
, p. 337 - 342 (1999)
Ever changing problems in agricultural weed control require periodic introduction of new herbicides. Imidazo[4,5-c]pyrazoles, which were considered of interest as potential herbicides, were synthesized and examined for the pre-emergence, post-emergence, and post-transplant control of weeds in rice against broadleaf and grass weed species. The data obtained suggest that some imidazo[4,5-c]pyrazoles have potential herbicidal activity against a wide range of weeds, with 5-methyl, 5-thiomethyl, and 5-unsubstituted derivatives being the most effective. No herbicidal activity was observed in the 5-methylsulfonylimidazo[4,5-c]pyrazole and imidazo[4,5-c]pyrazolone series.
A new efficient route to imidazo[4,5-c]pyrazol-5-ones
Vicentini, Chiara B.,Veronese, Augusto C.,Manfrini, Maurizio
, p. 629 - 632 (2007/10/03)
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).
