Generation of 2,3-dimethylene-2,3-dihydropyrrole derivatives; intermediates in intra- and inter-molecular Diels–Alder reactions
Abstract
Three different approaches are described for the generation of derivatives of 2,3-dimethylene-2,3-dihydropyrrole 2, which are reactive intermediates in Diels–Alder cycloaddition reactions; one of the intramolecular cycloadditions provides a new tricyclo[3.2.1.02,7]octane compound 8.