title: Palladium-catalyzed [3+2] intramolecular cycloaddition of alk-5-ynylidenecyclopropanes: a rapid, practical approach to bicyclo[3.3.0]octenes.
abstract: Readily accessible hex-5-ynylidenecyclopropane derivatives cycloisomerize to bicyclic five-membered carbocycles upon heating with catalytic amounts of a palladium complex.
authors.affiliation: Departamento de Química Orgánica y Unidad Asociada al CSIC, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Delgado
authors.forename: J Ramón
authors.initials: JR
authors.lastname: Rodríguez
authors.forename: Luis
authors.initials: L
authors.lastname: Castedo
authors.forename: José L
authors.initials: JL
authors.lastname: Mascareñas
mesh_terms: D001643:Bridged Bicyclo Compounds / Q000138:chemical synthesis*; D002384:Catalysis; D003500:Cyclization; D003521:Cyclopropanes / Q000737:chemistry*; D009795:Octanes / Q000138:chemical synthesis*; D010165:Palladium / Q000737:chemistry
chemical_list: D001643:Bridged Bicyclo Compounds; D003521:Cyclopropanes; D009795:Octanes; D010165:Palladium