Hypovalent radicals. Chemical trapping of electrogenerated diazoalkane anion radicals
Abstract
Diazoalkane anion radicals produced by electroreduction of diazodiphenylmethane (Ph2CN2) and 9-diazofluorene (FlN2) in the presence of certain proton donors yield the corresponding hydrazones (R2CNNH2); formation of diphenylmethane from electroreduction of Ph2CN2 is shown to proceed by formation of the carbene anion radical Ph2C·–.