M. Schmittel et al., PERSISTENT BENZOFURAN RADICAL CATIONS IN SOLUTION - A CYCLIC VOLTAMMETRY AND EPR ENDOR STUDY/, Perkin transactions. 2, (11), 1997, pp. 2145-2150
The persistent benzofuran radical cations B1(.+) -B4(.+) have been gen
erated by electrochemical or chemical oxidation. The lifetimes of the
radical cations have been determined by UV spectroscopy and cyclic vol
tammetry investigations, and their structures established by EPR and E
NDOR spectroscopy.