265310-65-4Relevant academic research and scientific papers
Selective oxidation of phenol and anisole derivatives to quinones with hydrogen peroxide and polymer-supported methylrhenium trioxide systems
Saladino, Raffaele,Neri, Veronica,Mincione, Enrico,Filippone, Paolino
, p. 8493 - 8500 (2007/10/03)
A convenient and efficient application of heterogeneous poly(4-vinylpyridine)/methyl rhenium trioxide (PVP/MTO) systems for the selective oxidation of substituted phenol and anisole derivatives to benzoquinones is described. Environment friendly, easily available, and low cost H2O2 was used as the oxygen atom donor. All catalysts were stable systems for at least five recycling experiments. In the oxidation of some natural phenols such as cardanol derivatives higher conversion and yields of benzoquinones were observed with respect to MTO in homogeneous phase suggesting a support-mediated molecular recognition process based on hydrogen-bonding interactions.
A new and efficient synthesis of ortho- and para-benzoquinones of cardanol derivatives by the catalytic system MeReO3-H2O2
Saladino, Raffaele,Neri, Veronica,Mincione, Enrico,Marini, Stefano,Coletta, Massimiliano,Fiorucci, Chiara,Filippone, Paolino
, p. 581 - 586 (2007/10/03)
A novel and efficient synthesis of ortho- and para-benzoquinones of cardanol derivatives was carried using catalytic system MeReO3-H2O2. The effect of the presence of bromine atoms on the selectivity of the oxidation was also studied. It was observed that the regio-selectivity of the reaction depends on the nature and on the substitution pattern of the substituents.
