SciELO - Scientific Electronic Library Online

 
vol.20 issue5Synthesis and antimicrobial evaluation of some new pyrazole, pyrazoline and chromeno[3,4-c]pyrazole derivativesDevelopment of a derivative spectrophotometric method for the determination of fungicide zinc ethylenebisdithiocarbamate using sodium molybdate author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Journal of the Brazilian Chemical Society

Print version ISSN 0103-5053

Abstract

ALVES, Diego et al. Copper catalyzed cross-coupling reactions of diaryl ditellurides with potassium aryltrifluoroborate salts. J. Braz. Chem. Soc. [online]. 2009, vol.20, n.5, pp. 988-992. ISSN 0103-5053.  http://dx.doi.org/10.1590/S0103-50532009000500025.

We present here results of the cross-coupling reaction of diaryl ditellurides with potassium aryltrifluoroborate salts using a catalytic amount of Cu(OAc)2 and bypiridine in DMSO/H2O under air atmosphere. This cross-coupling reaction is general and was performed with diaryl ditellurides and potassium aryltrifluoroborate salts bearing electron-withdrawing, electron-donating and neutral substituents, affording the corresponding unsymmetrical diaryl tellurides in good to excellent yields.

Keywords : tellurium; trifluoroborate salts; copper catalysis.

        · abstract in Portuguese     · text in English     · pdf in Englishpdf in English