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New aspects on the synthesis and properties of some azoxy- and azo-group containing compounds

E. SCORTANU1,* , C. PRISACARIU1

Affiliation

  1. The Romanian Academy's Institute of Macromolecular Chemistry "Petru Poni", Iasi, 700487, Romania

Abstract

The paper deals with a new method of preparation of azobenzene containing compounds consisting in small molecules or polymers, by a reductive coupling reaction of some nitrobenzene derivatives: p- or o-nitrotoluene, 4,6-dinitro-1,3-xylene or 4,4'-, 2,4', 2,2'-dinitro-dibenzyl. The reductive coupling reaction was achieved starting to nitro derivative and natrium hydroxide into methanol when azoxy- or/and azo group containing products were obtained. All products were characterized by IR and UV spectra, solubility, thermogravimetric and elemental analysis. The new method represents a convenient and cost-effective way to obtain some very intense colored products from orange to deep purple..

Keywords

Azobenzene, azoxybenzene, Reductive coupling reaction, IR and UV spectrometry, Thermal stability, Solubility.

Submitted at: Nov. 2, 2006
Accepted at: April 15, 2007

Citation

E. SCORTANU, C. PRISACARIU, New aspects on the synthesis and properties of some azoxy- and azo-group containing compounds, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 4, pp. 1025-1028 (2007)