Monitoring electrochemical reactions by 13C NMR spectroscopy

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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 13C 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 13C 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.

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