The formation of 1-acyl-2, 2-diphenylcyclopropanes is performed under mild electrochemical conditions. These cyclopropane derivatives, through acid-catalyzed ring-opening, lead to γ, γ-diphenyl-β, γ-unsaturated carbonyl compounds which evolve into either substituted naphthalenes, or β-benzhydryl-α, β-cycloalkenones depending on the acyclic or cyclic nature of the intermediate allyl ketone.