Having gained chemical understanding at molecular level, chemistry graduates may choose to apply this knowledge in almost unlimited ways, as it can be used to analyze all matter and therefore our entire environment. 13395-16-9, Name is Bis(acetylacetone)copper, belongs to copper-catalyst compound, is a common compound. Reference of 13395-16-9In an article, once mentioned the new application about 13395-16-9.
Liquid-phase oxidation of 3,5-di-tert-butylcatechol (3,5-DtBC) by molecular oxygen was carried out in the presence of homogeneous Cu(II) chelates or heterogeneous Cu(II)-poly(4-vinylpyridine) (Cu(II)-PVP) catalytic systems. The oxidation product in both cases is 3,5-di-tert-butyl-o-benzoquinone (3,5-DtBQ). The catalytic activity of the oxidation of 3,5-DtBC catalyzed by the homogeneous Cu(II) system was found to be affected by the Cu(II) chelates used as the catalyst, the addition of pyridine derivatives, and their amounts added. The oxidation activity was found to increase with the basicity of the added pyridine derivatives. The kinetic data obtained from the formation rate of 3,5-DtBQ by the homogeneous bis(acetylacetonato)Cu(II)-pyridine catalytic system showed that the rate was independent of the 3,5-DtBC concentration, second order in the concentration of the catalyst, and first order with respect to the partial pressure of oxygen. The homogeneous copper(II) chelate-catalyzed oxidation of 3,5-DtBC confirmed the stoichiometric equation 3,5-DtBC + 1 2O2 = 3,5-DtBQ + H2O. On the basis of these data, possible mechanistic interpretations are discussed, in which a dimeric Cu(II) complex is assumed to be the active species. The kinetics of 3,5-DtBC oxidation by molecular oxygen in the presence of the heterogeneous Cu(II)-PVP catalyst revealed that both the oxygen absorption rate and effectiveness factor decreased with increasing particle size of the Cu(II)-PVP catalyst. The increase of the particle size of the catalyst was found to cause an increase in the fraction of mass transfer resistance in the total (mass transfer + reaction) resistance of the oxidation reaction.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Reference of 13395-16-9, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 13395-16-9, in my other articles.
Reference：
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”