HashemiM.M., Karimi-JaberiZ., and Eftekhari-SisB., J. Chem. Res., 2005, 160.
2.
BehrmanE.J., in Encyclopedia of Reagents for Organic Synthesis, vol. 1, PaquetteL.A. (ed.), Wiley, N.Y., 1995, p. 193.
3.
BergerSt., and RiekerA., in The Chemistry of Quinonoid Compounds, Part 1, PataiS. (ed.), Wiley, London, 1974, p. 198.
4.
BehrmanE.J., and EdwardsJ.O., Rev. Inorg. Chem., 1980, 2, 179.
5.
BehrmanE.J., J. Am. Chem. Soc., 1963, 85, 3478.
6.
BehrmanE.J., Organic Reactions, 1988, 35, 421.
7.
KhulbeK.C., and SrivastavaS.P., Curr. Sci., 1964, 33, 270.
8.
BalónM., GuardadoP., CarmonaC., HidalgoJ., and MuñozM.A., Can. J. Chem., 1992, 71, 167.
9.
Editor's note: Professor M M Hashemi has informed us that the experiments in Ref. 1 were in fact carried out with a mole ratio of phenol to ammonium persulfate of 1:2 and that the temperature of the silica gel for the oxidation of phenols having one hydroxyl group was in the range 45 – 50 °C. He has made no further comment about the experimental results reported in Professor Behrman's paper.
