γ-Keto thioesters were easily transformed into α,β-unsaturated lactams using a two-step process (via furans) or by a one-pot reaction. This methodology is general and efficient leading to a varied substitution pattern. The structures of all new heterocycles were assigned using 2D NMR experiments, computer-assisted elucidation, and X-ray diffraction analyses.
fluorine - nitrogen heterocycles - lactam - pyrrol-3-one
