Copper-catalyzed electrosynthesis of 1-acyl-2,2-diphenylcyclopropanes and their behaviour in acidic medium
Résumé
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.
1-Acyl-2,2-diphenylcyclopropanes prepared under mild electrochemical conditions, are converted, in acidic medium, first into γ,γ-diphenyl-β,γ-unsaturated ketones and subsequently into substituted naphthalenes or β-benzhydryl-α,β-cycloalkenones.