Mechanism of action of base-catalyzed oxygenation of phenol derivatives
作者:Duck-Hyung Lee、Jung Beom Son、Seokwon Jung、Jihey Song、Seung Wook Ham
DOI:10.1016/j.tetlet.2005.09.029
日期:2005.11
Cyclopropyl derivative of 2,6-di-tert-butylphenol is synthesized as a probe to investigate the mechanism of base-catalyzed autooxidation of phenol derivatives. Our study indicates that one electron reduction of molecular oxygen from phenolate gives phenoxyl radical 3, a key intermediate of autooxidation. The coupling of phenoxyl radical and superoxide radical gives peroxylate anion 4 and produces the