Oxidizing properties of the tert-butyl hydroperoxide-tetra-tert-butoxychromium system

tert-Butyl hydroperoxide reacts with the tetra-tert-butoxychromium by oxidizing the latter to chromyl CrV=O (C₆H₆, 20°C). At t-BuOOH-Cr(OBu-t)₄ ratio of 2: 1 or higher, oxygen is released. The occuring processes include the formation of chromium-containing peroxides and peroxytrioxydes. The t-BuOOH-Cr(OBu-t)₄ system oxidizes aromatic hydrocarbons of various structures (anthracene, 9,10-dimethylanthracene, 1,1-diphenylethylene, alkylarenes), as well as primary and secondary alcohols. Depending on the structure of the substrate, the oxidants are: in situ generated oxygen including that in the singlet state, peroxy radicals, or chromium-containing peroxides.     

Cobalt(III) Bis-o-semiquinone Complexes with 1-Aryl-3,5-Diphenylformazan Ligands: Synthesis,Structures, and Magnetic Properties

Russian Journal of Coordination Chemistry - New heteroligand cobalt(III) bis-3,6-di-tert-butyl-o-benzosemiquinone complexes with 1-(p-X-phenyl)-3,5-diphenylformazan ligands Co(3,6-SQ)2LX (Х...