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Journal of the Brazilian Chemical Society

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 1678-4790.

Os efeitos mesoméricos do substituinte benzofuroxano, na preparação de N5,N10-dióxidos de fenazina são descritos. As características eletrônicas do substituinte na posição 5 dos benzofuroxanos determinam a proporção dos isômeros 7 e 8 dos N5,N10-dióxidos de fenazina, quando fenóis substituídos são usados.

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

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