Electrochemical oxidation of catechol derivatives in the presence of 3-acetyldihydro-2(3H)-furanone: efficient and green method for synthesis of new butyrolactone derivatives

摘要

Electro-oxidation of catechols has been studied in the presence of 3-acetyldihydro-2(3H)-furanone as a nucleophile in water-ethanol solution (90:10 v/v), using cyclic voltammetry and controlled-potential coulometry. The results indicate that the electro-generated o-benzoquinone participates in a Michael addition reaction with this nucleophile and via EC mechanism pathway, converted to corresponding catechol derivatives. The products have been characterized after purification by IR, H-1 NMR, C-13 NMR, and elemental analysis method.