ChemInform Abstract: New and Straightforward Access to Olefins, Butenolides and β- Nitro γ-Butyrolactones from Precursors Obtained via SRN1 Reactions

The coupling of gem-chloro-nitro derivatives as substrates for S RN 1 reactions with anions derived from variously substituted β-dicarbonyl compounds readily gives key compounds which, depending upon the structure of the reactants, lead directly to functionalized olefins, or under acidic treatment to butenolides and to simple or spiro-β-nitro-γ-butyrolactones