Monitoring electrochemical reactions by ¹³C NMR spectroscopy

Abstract

Abstract The anodic conversion of 2,4,6‐tri‐ tert ‐butylphenol in methanol, leading to 2,4,6‐tris(1,1‐dimethylethyl)‐4‐methoxy‐2,5‐cyclohexadien‐1‐one, has been followed by two types of 13 C NMR experiments: (a) a static procedure, inserting the electrodes directly into a rotating NMR tube and (b) a continuous flow procedure, combining electrochemical and NMR flow cells. During electrolysis the resolution of the 13 C NMR spectra decreased in the static procedure owing to magnetic field gradients. In the flow procedure the resolution was comparable with that of routine spectra.