Hydrolysis of -N=CH- Bond in 2-Salicylidene-4-aminophenyl benzimidazole by Palladium(II)

M. Chandrakala1,2,*

1Department of Chemistry, Bangalore Institute of Technology, Bengaluru-560004, India

2Department of Chemistry, V.V. Pura College of Science, K.R. Road, Bengaluru-560004, India

*Corresponding author: E-mail: mchandrakala.kum@gmail.com


The Schiff base, 2-salicylidene-4-aminophenyl benzimidazole (I, SAPbzlH) in ethanolic medium reacts with palladium(II) in acidic medium (HCl/HBr) and coordinated SAPbzlH undergoes hydrolysis at -N=CH- bond to yield salicylaldehyde and square planar complexes having composition [Pd(C13H11N3)2X2]·2HX (II) (X = Cl, Br). The obtained complexes have been characterized by elemental analysis, atomic absorption spectra, infrared, electronic and extensive utility of NMR. Possible mechanism for the hydrolysis of coordinated 2-salicylidene-4-aminophenyl benzimidazole (SAPbzlH) has been proposed.


Schiff base, Divalent palladium, Correlation spectroscopy, Hydrolysis.

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