Abstract

MARQUEZ, Jairo  and  MARQUEZ, Olga P. Síntesis electroquímica y propiedades de  Polimetoxibencenos. Rev. LatinAm. Metal. Mater. [online]. 2007, vol.27, n.1, pp.3-12. ISSN 0255-6952.

Methoxybenzenes are electrochemically oxidized at an electrode surface, in acetonitrile/tetrabutylammonium tetrafluoroborate, with high organic and current yields. In the presence of water, the main reaction product is the alkoxy phenylacetamide, due to a nucleophylic attack of acetonitrile to the aromatic ring, followed by hydrolysis. In anhydrous medium, the main reaction product is a polymer, which is formed following an ECE type of mechanism. This polymer forms a bilayer structure on the electrode surface and is insoluble, stable and good conductor of electricity. It is coloured and shows electrochromic properties, and some of them are sensitive to temperature, pressure, light radiation and sound frequency. They can modify electrodes and can be modified by metallic particles. Some of these modified materials have been used as electrodes for the reduction process of carbon dioxide and electrolytic oxygen evolution. Preparation of these polymers in different media, modified morphology and properties of the material.

Keywords : Electro-oxidation; Polymethoxybenzenes; Electropolymerization; Electrochemical synthesis.