The first report on the catalytic oxidation of urazoles to their corresponding triazolinediones via in situ catalytic generation of Br+ using periodic acid or Okone (R)/KBr system

Zolfigol MA; Bagherzadeh M; Mallakpour S; Chehardoli G; Ghorbani-Choghamarani A; Koukabi N; Dehghanian M; Doroudgar M

Journal of Molecular Catalysis A-Chemical, Vol.270, No.1-2, 219-224, 2007

DOI10.1016/j.molcata.2007.02.003 Export Citation

The first report on the catalytic oxidation of urazoles to their corresponding triazolinediones via in situ catalytic generation of Br+ using periodic acid or Okone (R)/KBr system

Zolfigol MA, Bagherzadeh M, Mallakpour S, Chehardoli G, Ghorbani-Choghamarani A, Koukabi N, Dehghanian M, Doroudgar M

A combination of periodic acid or oxone((R)) and a catalytic amount of KBr in the presence of few drops of water, were used for the catalytic oxidation of urazoles and bis-urazoles to their corresponding triazolinediones under mild and heterogeneous conditions with moderate to excellent yields. (C) 2007 Elsevier B.V. All rights reserved.

Keywords:urazoles;bis-urazoles;triazolinediones;periodic acid;Oxone (R);potassium bromide;catalytic oxidation;heterogeneous conditions