H2O2-Based Oxidation of Functionalized Phenols Containing Several Oxidizable Sites to p-Quinones Using a Mesoporous Titanium-Slicate Catalyst
, E-ISSN: 1463-9270
Zalomaeva Olga V.
Kholdeeva Oxana A.
Sorokin Alexander B.
Boreskov Institute of Catalysis SB RAS
Institute of Researches on Catalysis and Environment in Lyon
Russian Foundation for Basic Research
The oxidation of 2-allylphenol and different phenols bearing alcohol functional groups with aqueous H2O2 as oxidant and heterogeneous titanium-silicate Ti-MMM-2 as catalyst exhibits an unusual selectivity affording the corresponding p-quinones with good to moderate yield and keeping the other oxidizable sites intact. The use of hydrogen peroxide and heterogeneous titanium-silicate catalyst is a green alternative to the stoichiometric oxidation with hypervalent iodine compounds that provides better yields of structurally complex quinones in one step.