Aryliminodimagnesium Reagents. IX. The Reaction with Benzophenones. The Mechanism of Coordination and Electron Transfer Processes Distinct from That of Grignard Reaction

Abstract

Abstract In the reaction of aryliminodimagnesium reagents(ArN(MgBr)2, Ar=C6H5, p-MeC6H4, and p-MeOC6H4) with some p-substituted benzophenones, the arylaminyl radicals(ArNMgBr) derived from the reagents were detected by ESR in low concentrations and identified by computer simulation. From comparison of all the itemized facts characteristic of the reaction with those of Grignard reaction of the same substrates, the mechanisms of initial coordination and electron transfer of the two reactions were distinguished.