16181-60-5Relevant academic research and scientific papers
Organocatalytic Amination of Pyrazolones with Azodicarboxylates: Scope and Limitations
Formánek, Bed?ich,?eferna, Vít,Meazza, Marta,Rios, Ramon,Patil, Mahendra,Vesely, Jan
supporting information, p. 2362 - 2366 (2021/03/16)
The organocatalytic amination of pyrazol-5-ones with azodicarboxylates (catalyzed by quinine) is reported. This asymmetric process furnishes enantiomerically enriched hydrazine adducts containing quaternary stereocenters in high yields (74–96 %) and enant
Palladium-catalyzed carbonylative coupling of α-chloroketones with hydrazines: a simple route to pyrazolone derivatives
Capua, Martina,Granito, Catia,Perrone, Serena,Salomone, Antonio,Troisi, Luigino
, p. 3363 - 3367 (2016/07/11)
A range of pyrazol-5-one and pyrazol-3-one derivatives has been synthesized in a single step via a palladium-catalyzed carbonylation of aromatic or aliphatic α-chloroketones, in the presence of aromatic or aliphatic hydrazines. A reaction mechanism, explaining the observed regioselectivity, has been also discussed.
N,N'-LINKED BIAZOLES. PART 7. OXIDATIVE DIMERIZATION OF N-UNSUBSTITUTED TETRAHYDROINDAZOLONES
Mendoza, Javier De,Garcia-Ochoa, Silvestre,Prados, Pilar,Parra, Enrique,Elguero, Jose
, p. 2377 - 2386 (2007/10/02)
The structure of the products obtained by oxidative dimerization of tetrahydroindazolones was established as being N(1)-C(3a') dimers.In one case a C(3a)-C(a') dimer was also isolated, but N-N'-Linked dimers were never found, contrary to a previous report
