A mechanism for the photosubstitution of fluoro- and methoxy-benzenes by diethylamine

Abstract

The photochemical reactions of fluoro- and methoxy-benzenes with diethylamine produce addition and substitution products. The proposed mechanism involves quenching of the singlet state by the amine to give an exciplex. Proton transfer within the exciplex leads to the amine adducts, some of which can undergo elimination to yield the substitution products.