6488-88-6Relevant articles and documents
Metallosupramolecular architectures based upon new 2-(1-pyrazolyl)-benzimidazole chelating ligands
Hawes, Chris S.,Kruger, Paul E.
, p. 757 - 771 (2015)
In this article, we report the synthesis and characterisation of five ligands L1-L5 containing the 2-(pyrazol-1-yl)-benzimidazole chelating group, and investigate their structural chemistry when reacted with either Cu(II) or Zn(II) ions. The mononuclear c
Direct, metal-free amination of heterocyclic amides/ureas with NH-heterocycles and N-substituted anilines in POCl3
Deng, Xiaohu,Roessler, Armin,Brdar, Ivana,Faessler, Roger,Wu, Jiejun,Sales, Zachary S.,Mani, Neelakandha S.
experimental part, p. 8262 - 8269 (2011/12/04)
A POCl3-mediated, direct amination reaction of heterocyclic amides/ureas with NH-heterocycles or N-substituted anilines is described. Compared to the existing methods, this operationally simple protocol provides unique reactivity and functional
Reaction of 2-hydrazinobenzimidazole with β-diketones: A structural reinvestigation
Singh, S. P.,Kumar, Savita,Kumar, Devinder
, p. 262 - 265 (2007/10/02)
The reaction of 2-hydrazinobenzimidazole (1) with pentane-2,4-dione yields a pyrazole derivative (2) instead of the reported triazepine (3).Several 2-pyrazolylbenzimidazoles (4) have similarly been synthesized using unsymmetrical β-diketones and their precursors.It has been shown that 1H NMR spectroscopy can easily distinguish the isomeric pairs.