Chemistry Letters, Vol.30, No.11, 1152-1153, 2001
Superoxide anion generation via electron-transfer oxidation of catechin dianion by molecular oxygen in an aprotic medium
Superoxide anion (O2(.-)) was generated via an electron-transfer oxidation of catechin dianion, which was produced in the reaction of catechin with two equivalents of methoxide anion, by molecular oxygen in acetonitrile. From the detailed spectroscopic and kinetic analyses was determined the rate constant for the formation of O2(.-) to be 5.8 X 10(-2) mol(-1) dm(3) s(-1).