On the green catalytic synthesis of purpurogallin

Salima Dib (1, 2) , Didier Villemin (1) , Bachir Mostefa-Kara (2) , Amel Hamhami (2) , Nathalie Bar (1) , Mebrouka Dekhici (1, 3) , Nawel Cheikh (3, 2)

1 LCMT - Laboratoire de chimie moléculaire et thioorganique
2 Laboratoire de Catalyse et Synthèse en Chimie Organique
3 Université Tahri Mohamed Bechar [Bechar]

The catalytic oxidation under green conditions of pyrogallol into purpurogallin was performed by air with laccase model copper complexes or by plant extracts containing peroxidases in the presence of hydrogen peroxide. A study was conducted for turnip, depending on the amount of extract, the method of introduction and the pH. Optimization of these conditions made it possible to easily obtain pure purpurogallin with a yield of 78%. Rev. Roum. Chim., 65(12), 1153-1157 (2020), doi: 10.33224/rrch.2020.65.12.1.

Mots clés: pyrogallol; purpurogallin; tetramethylethylene diamine copper complex; peroxidase; bitter turnips

Domaines: Chimie organique; Catalyse

Salima Dib, Didier Villemin, Bachir Mostefa-Kara, Amel Hamhami, Nathalie Bar, et al.. On the green catalytic synthesis of purpurogallin. Revue Roumaine de Chimie, 2020, 65 (12), pp.1153-1157. ⟨10.33224/rrch.2020.65.12.1⟩. ⟨hal-03205206⟩