Electrochemical Oxidation of Phenolic Analogues Towards Formation of New C-C Bonds

摘要

The electrochemical oxidation of selected phenols 2,6-di-tertbutylphenol (1), 2,6-diphenylphenol (2), and 2,2'-dyhydroxybiphenyl (3) was studied using cyclic voltammetry, chronoamperometry, UV-vis spectroscopy and fluorescence spectroscopy. All compounds exhibited oxidation of the corresponding phenol using cyclic voltammetry and chronoamperometry. Electrochemical oxidation of phenols resulted in the electrochromic reaction and formation of yellow-coloured and fluorescent products. The photophysical properties of products were characterized by spectroscopy. Data indicates that electrochemical oxidation of phenols, via phenoxyl radical formation, lead to new carbon-carbon bond formation and synthesis of products with extended conjugation, absorbance in the visible range and enhanced fluorescence.