THE STEREOSPECIFIC FORMATION OF AN EXOCYCLIC ALKENE BY A CONSECUTIVE RADICAL CYCLIZATION-ELEIMINATION

Article abstract of DOI:10.1016/S0040-4039(00)96249-X

The iodovinylstannanes 4 and 5 were prepared by the conjugate addition of the tri-n-butyltin moiety to a substituted propiolic ester.Compounds 4 and 5 underwent a radical cyclization-elimination reaction to stereospecifically generate an exocyclic alkene.