SciELO - Scientific Electronic Library Online

 
vol.35 issue8Enzymatic activity of catechol 1,2-dioxygenase and catechol 2,3-dioxygenase produced by Gordonia polyisoprenivoransCloud point extraction/preconcentration of copper ions exploiting the formation of complexes with DMTI [4,5-dimercapto-1,3-dithyol-2-thionate] author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Química Nova

Print version ISSN 0100-4042

Abstract

VASCONCELOS, Ramon S.; SILVA JR, Luiz F.  and  LOPES, Norberto P.. Study by mass spectrometry of solutions of [hydroxy(tosyloxy)iodo]benzene: proposed disproportionation mechanisms. Quím. Nova [online]. 2012, vol.35, n.8, pp. 1593-1599. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422012000800019.

Solutions of [hydroxy(tosyloxy)iodo]benzene (HTIB or Koser's reagent) in acetonitrile were analyzed using high resolution electrospray ionization mass spectrometry (ESI-MS) and electrospray ionization tandem mass spectrometry (ESI-MS/MS) under different conditions. Several species were characterized in these analyses. Based on these data, mechanisms were proposed for the disproportionation of the iodine(III) compounds in iodine(V) and iodine(I) species.

Keywords : hypervalent iodine; electrospray ionization mass spectrometry; disproportionation.

        · text in Portuguese     · pdf in Portuguese