The oxidation of p-toluidine in H+/H2O can give mainly a tetramer, a trimer, or a mixture of both. The outcome is dependent upon the oxidant, the pH and the concentration ofp-toluidine. Both the trimer and tetramer are definitively characterised by X-ray single crystal structure determination.
We are grateful to the UK EPSRC national mass spectrometry service center for mass spectra.
- Barsilowsky's base
- Perkins's base
- potassium dichromate
- potassium permanganate