Tadokoro, Hiroyuki published the artcileCatalysis of polyvinylpyridine-supported copper(II) during 2,6-Di-tert-butylphenol oxidation in the presence of inorganic base, Related Products of copper-catalyst, the publication is Journal of Catalysis (1992), 138(1), 24-37, database is CAplus.
The liquid-phase oxidation of 2,6-di-tert-butylphenol (BOH) was studied by using the heterogeneous polymer-supported Cu(II) catalyst, basic Cu(II)-poly(4-vinylpyridine) [Cu(II)-PVP] catalyst. The only oxidation product was 3,3′,5,5′-tetra-tert-butyl-4,4′-diphenoquinone. The oxidation reaction of BOH did not proceed over the Cu(II)-PVP catalyst by itself; it needed promotion by addition of an inorganic base such as KOH in the solvent. The added KOH had the role of generating the corresponding phenolate anion by dissociating the BOH mol. The turnover number [mol of absorbed O2 per unit time and unit mol of Cu(II)] with the basic Cu(II)-PVP catalyst in the BOH oxidation passed through a maximum with the variation in the pyridine/Cu(II) mol ratios (ligand ratio). The reaction order was dependent on the Cu(II) concentration and changed from 2nd- to 1st-order with an increase in the Cu(II) amount in the Cu(II)-PVP. The kinetics show that the rate-determining step in the BOH oxidation catalyzed by the basic Cu(II)-PVP changed from the reoxidation of the dinuclear Cu(I) complex by O2 to the BOH oxidation by the mononuclear Cu(II) complex with an increase in the Cu(II) amount in the Cu(II)-PVP catalyst. The catalytic activity of the Cu(II)-PVP catalyst remained almost constant and it could be reused.
Journal of Catalysis published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is C20H28B2O4S2, Related Products of copper-catalyst.
Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”