Manganese(III) porphyrin covalently bound to sol-gel derived silica (Mn(III) porphyrinosilica): A reusable and green heterogeneous photocatalyst for oxidative decarboxylation of α-arylacetic acids with H _2O_2

摘要

Manganese(III) (5,10,15,20-tetrakis(2,6-dichlorophenyl)porphyrin)chloride, Mn~(III)(TDCPP)Cl, was chemically (covalently) bound to a silica matrix by a sol-gel method and used as a new reusable heterogeneous photocatalyt for the selective and efficient oxidative decarboxylation of α-arylacetic acids with H_2O_2 as a mild and clean oxidant at room temperature. The activity of this heterogeneous photocatalytic system is higher than that of a corresponding homogeneous systems and the catalyst can be reused several times without loss of its activity and selectivity.