Methods for Preparing Cyclic β-Cyclopentadienyl(dicarbonyl)iron-substituted α,β-Unsaturated Carbonyl Compounds: Precursors to Annulated α,β-Butenolides and γ-Lactams
Methods for Preparing Cyclic β-Cyclopentadienyl(dicarbonyl)iron-substituted α,β-Unsaturated Carbonyl Compounds: Precursors to Annulated α,β-Butenolides and γ-Lactams
Methods for Preparing Cyclic β-Cyclopentadienyl(dicarbonyl)iron-substituted α,β-Unsaturated Carbonyl Compounds: Precursors to Annulated α,β-Butenolides and γ-Lactams
Methods for the synthesis of cyclic [η5-C5H5(CO)2Fe]-substituted (Z)-enals from cyclic ketones are described. With a single transformation five-membered lactams as well as lactones are accessible from these organometallic reagents.