Electrophilic olefin heterocyclization in organic synthesis. Stereoselective synthesis of 4,5-disubstituted .gamma.-lactams by iodine-induced lactam formation of .gamma.,.delta.-unsaturated thioimidates
Electrophilic olefin heterocyclization in organic synthesis. Stereoselective synthesis of 4,5-disubstituted .gamma.-lactams by iodine-induced lactam formation of .gamma.,.delta.-unsaturated thioimidates
Iodine-induced cyclization of γ,δ-unsaturatedsecondarythioamides proceeds regio- and chemo-selectively, providing, after elaboration, 2-aminothiophenes.