Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry and Computational Chemistry

Abstract

Synthesis and characterization of N-[2-hydroxy-1-napthalydene]-2- ethoxyanilline and potentiometric study on stability of its complexes with transition elements

Author(s): R. K. Pardeshi, Megha Rai, Shivaji Jadhav and Mazahar Farooqui

2-hydroxy-1-napthalydene (1) on condensation with 2-ethoxyanilline (2) gives Schiff base N-[2-hydroxy-1- napthalydene]-2-ethoxyanilline (3). Formation of Schiff base confirmed by TLC, M.P., IR and C,H,N analysis. Further formation of complexes of transition elements like Mn(II), CO(II), Ni(II), Cu(II) and Zn(II) with organic ligand Schiff base N-[2-hydroxy-1-napthalydene]-2-ethoxyanilline was studied by the potentiometric technique at 27±0.10C in 60%(v/v) Dioxane - water medium at 0.1M (NaClO4) ionic strength. The stability constants of these binary complexes of N-[2-hydroxy-1-napthalydene]-2-ethoxyanilline with transition elements were evaluated and Order of stability constant found as Cu>Zn>Ni >CO>Mn.


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