Facile Iodine-Catalyzed Michael Addition of Indoles to 𝜶,𝜶^′-Bis(arylmethylene)cyclopentanones: An Efficient Synthesis of E-2-(3-Indolylphenylmethyl)-5-phenylmethylenecyclopentanones

Scheme 1

Iodine-catalyzed Michael addition of indoles to α,α′-bis(arylmethylene) cyclopentanones.