A Convenient Synthesis of Titanium (IV), Zirconium (IV) and Silicon (IV) Complexes of Schiff Bases

Abstract

Metal alkoxides such as titanium and zirconium tetraisopropoxide and tetraethoxysilane reacted with 2-hydroxy-4 (or 5)-X-substituted aniline (X=H, CH₃, NO₂) and salicylaldehyde or 2-hydroxy-l-naphthaldehyde to give metal(W) complexes of Schiff bases in excellent yields. The reaction provides a simple method for the preparation of these metal complexes without using Schiff bases.