Novel Mn(III) Porphyrins and Prospects of Their Application in Catalysis

MPSC6 binuclear complexes immobilized on graphene oxide for oxidation of lignin model compounds and lignin

“…Some authors have focused on depolymerization of lignin and lignin model compounds using metalloporphyrins as a catalyst. [4][5][6] In another research work, Zhou 7 compared the effect of Co(salen) in the catalytic treatment of Indulin lignin at 90 °C; he reported Co(salen) as being the efficient catalyst in increasing the carbonyl-compound yield and decreasing the β-O-4, β-β and β-5 linkages. In addition, several researches indicated that salenporphyrin binuclear complexes possessed two catalytic sites within one complex, affording obvious superiority to the salen and porphyrin complexes, which led to an increasing selective conversion of substrates.…”

Nanocomposite‐based inorganic‐organocatalyst Cu(II) complex and SiO2‐ and Fe3O4 nanoparticles as low‐cost and efficient catalysts for aniline and 2‐aminopyridine oxidation

“…[ 29 ] Such organic reactions are catalyzed by alternative catalysts, such as heterogeneous metal oxides, [ 29,30 ] widely, and homogeneous inorganic‐organocatalysts, rarely. [ 31 ] Due to the low selectivity of the catalytic aniline oxidation, the chemoselective product could be determined according to the reaction conditions and the type of the catalyst and solvent used. [ 32 ]…”

“…Despite the high cost of porphyrins, their complexes with manganese(III) ion exhibited very good catalytic selectivity in the oxidation of aniline to nitrobenzene. [ 31 ] On the contrary, some applicable heterogeneous metal oxides were the most distinguished catalysts in literature as selective catalysts for aniline oxidation to other products (e.g., phenylhydroxylamine and nitrosobenzene). [ 33 ] The most effective and selective oxidant for aniline oxidation was aqueous hydrogen peroxide, a highly eco‐friendly oxidizing agent.…”