Evidence for the formation of chromium (III) diphenoquinone complexes during oxidation of guaiacol and 2,6-dimethoxyphenol with chromic acid

The reaction of guaiacol and 2,6-dimethoxyphenol with metal oxidants has been used as a model in order to better understand the chromium mediated reaction and photostabilization of lignin on wood surfaces. Even with a simple lignin model such as guaiaco