NEW ACCESS TO FUSED VINYLCYCLOPROPANES BY RADICAL CYCLIZATION

A new methodology allowing to assemble fused vinylcyclopropanes by cyclization of vinyl radicals is herein reported. This methodology is based on the trapping of the cyclopropylcarbinyl radical intermediate by B phenylthiyl elimination which provides the vinylcyclopropane. Preliminary results on a few model compounds illustrate the feasibility and usefulness of the method.