EPR STUDIES ON THE DEBROMINATION OF DIPHENYL BROMOMETHANE IN THE PRESENCE OF VIOLOGEN DERIVATIVES AS ELECTRON-TRANSFER CATALYSTS (ETC)

摘要

The active intermediate"carbon radical" was detected by the spin—trapping reagent （POBN） during the debromination of Ph2CHBr in the presence of viologen derivatives as electron—transfer catalysts（ETC）.