SciELO - Scientific Electronic Library Online

vol.16 issue6ATitanium and vanadium ethylene polymerization catalysts containing tris(pyrazolyl)borate ligand: Effects of polymerization parameters on activity and polymer properties author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Journal of the Brazilian Chemical Society

Print version ISSN 0103-5053
On-line version ISSN 1678-4790


CERECETTO, Hugo; GONZALEZ, Mercedes; LAVAGGI, M. Laura  and  PORCAL, Williams. Preparation of phenazine N5,N10-dioxides: Effects of benzofuroxan substituents in the outcome of their expansion reaction with phenolates. J. Braz. Chem. Soc. [online]. 2005, vol.16, n.6a, pp.1290-1296. ISSN 0103-5053.

The mesomeric effects of the benzofuroxan substituent in the preparation of phenazine N5,N10-dioxides are described. The electronic characteristics of the substituent in 5-substituted benzofuroxans determine the ratio of the 7- and 8-isomers of phenazine N5,N10-dioxides when substituted phenols are used.

Keywords : phenazine N5,N10-dioxide; benzofuroxan tautomerism; mesomeric effect.

        · abstract in Portuguese     · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License