Preparation and characterization of persistent maltose-conjugated triphenylmethyl radicals.


The condensation reaction of D-maltose to free radicals of the series of tris(2,4,6-trichlorophenyl)methyl (TTM) and tris(perchlorophenyl)methyl (PTM) has been described for the first time. The new persistent radicals 1 and 2 are very stable and have been characterized by EPR. Their cyclic voltammograms show a quasi-reversible process in the cathode, being reduced to the corresponding anions, with redox potentials a little lower than those of TTM and PTM, respectively. Their oxidant activity is in close relation with their reduction potentials. Therefore, while 2 is reduced by ascorbic acid, 1 remains unaltered.

DOI: 10.1021/jo202356u

Cite this paper

@article{Mesa2012PreparationAC, title={Preparation and characterization of persistent maltose-conjugated triphenylmethyl radicals.}, author={Juan Antonio Mart{\'i}nez Mesa and Amado Vel{\'a}zquez-Palenzuela and Enric Brillas and Josep Ll. Coll and Josep L Torres and Lu{\'i}s Juli{\'a}}, journal={The Journal of organic chemistry}, year={2012}, volume={77 2}, pages={1081-6} }