Activation of - N=CH - bond in a Schiff base by divalent nickel monitored by NMR evidence

Autor:	N. M. Nanje Gowda, K. G. S. Murthy, M. Chandrakala, K. R. Nagasundara
Rok vydání:	2012
Předmět:	chemistry.chemical_classification Benzimidazole Schiff base Ethanol Inorganic chemistry chemistry.chemical_element General Chemistry Medicinal chemistry Magnetic susceptibility Alkyl amine Divalent chemistry.chemical_compound Ammonia Nickel chemistry General Materials Science
Zdroj:	Magnetic Resonance in Chemistry. 50:335-340
ISSN:	0749-1581
Popis:	The Schiff base, 2–salicylidene–4–aminophenyl benzimidazole in ethanol undergoes activation of –N=CH– bond by Ni2+ in the presence of ammonia or primary alkyl amine to produce nickel complexes of the formula Ni{o–C6H4(O)CH NR}2 . n H2O [R = H, Me; n = 0; R = Et, n = 0.5] and 4–aminophenyl benzimidazole. The products have been identified by elemental analysis, magnetic susceptibility measurements and IR, ESR, mass and extensive NMR spectral studies. The possible mechanism for the activation of –N=CH – bond has also been proposed. Copyright © 2012 John Wiley & Sons, Ltd.
Databáze:	OpenAIRE
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