96338-04-4Relevant academic research and scientific papers
1,3-Dipolar cycloaddition of 2-diazopropane to pyrimido/1,2-b/pyridazin-4-one derivatives. The synthesis of pyrazolo/4,3-d/pyrimido/1,2-b/pyridazin-4(10H)-ones, derivatives of a novel heterocyclic system
Stanovnik, Branko,Boznar, Breda,Koren, Bozidar,Petricek, Sasa,Tisler, Miha
, p. 1 - 4 (2007/10/02)
Facile regiospecific cycloaddition of 2-diazopropane (2) to the pyrimido/1,2-b/pyridazin-4-ones (1a-d), derivatives of 10?-electron heteroatomic bicyclic system, give the pyrazolo/4,3-d/pyrimido/1,2-b/pyridazin-4(10H)-ones (4a-d) in 32-52percent yields
