OXYGENATION OF 2,6-DI-t-BUTYLPHENOLS BEARING ELECTRON-WITHDRAWING GROUP AT 4-POSITION MEDIATED BY CO(II)-SCHIFF BASE COMPLEX

Article abstract of DOI:10.1016/S0040-4039(01)92484-0

4-Acyl-2,6-di-t-butylphenols except 3,5-di-t-butyl-4-hydroxybenzaldehyde were oxygenated in the presence of Co(Salpr) exclusively at the ortho position to give the corresponding 3,5-di-t-butyl-6-hydroperoxy-2,4-cyclohexadienone derivatives in quantitative