作者:KIMPE, N.、VERHE, R.、BUYCK, L.、MOENS, L.、SULMON, P.、SCHAMP, N.
DOI:——
日期:——
Pyrazine Radical Cations as a Catalyst for the Aerobic Oxidation of Amines
作者:Rok Brisar、Dirk Hollmann、Esteban Mejia
DOI:10.1002/ejoc.201700949
日期:2017.10.2
and green synthetic method for the preparation of N,N-disubstituted tetramethylpyrazinium radical cations was developed, which does not require any solvent or strong alkylating agents. The investigation by UV/Vis and electron paramagnetic resonance (EPR) spectroscopy proved the stability of the prepared radical cation. Moreover, it was shown for the first time that the prepared N,N-disubstituted tetramethylpyrazine