Tandem Radical Cyclization of Acyclic Homoallylic Xanthates; Cyclopentannulated γ-Thionolactone and γ-Lactones

Article abstract of DOI:10.1021/jo00008a048

The first tandem radical cyclization of linear homoallylic xanthates was explored.Homoallylic xanthates prepared from α,β-unsaturated esters were easily cyclized by tin hydride with an radical initiator to give the corresponding thionolactone annulated cy