Collect. Czech. Chem. Commun. 1994, 59, 905-912

Photochemical Hydroxylation of Salicylic Acid Derivatives with Hydrogen Peroxide, Catalyzed with Fe(III) and Sensitized with Methylene Blue

Stanislav Luňáka, Jacques Muzartb and Jiřina Brodilováa

a Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 160 00 Prague 6, Czech Republic
b Université de Reims Champagne-Ardenne, 51062 Reims, France


Substitution of hydrogen in the carboxy or hydroxy group of a salicylic acid molecule with a methyl group, which hinders the coordination of Fe(III), results in a pronounced reduction of photocatalytic effects. The complex of Fe(III) with salicylic acid is the precursor of the thermal catalyst arising on irradiation.