title: Ruthenium-catalyzed dimerization of propiolates: a simple route to α-pyrones.
abstract: A ruthenium-catalyzed regioselective intermolecular multistep homo- and heterodimerization of substituted propiolates providing α-pyrone-5-carboxylates and α-pyrone-6-carboxylates is described. The synthetic utilities of α-pyrone derivatives are shown. The proposed mechanism is strongly supported by experimental evidence.
authors.affiliation: Department of Chemistry, Indian Institute of Science Education and Research , Pune 411021, India.
authors.forename: Rajendran
authors.initials: R
authors.lastname: Manikandan
authors.forename: Masilamani
authors.initials: M
authors.lastname: Jeganmohan
mesh_terms: D002384:Catalysis; D019281:Dimerization; D015394:Molecular Structure; D011422:Propionates / Q000737:chemistry*; D011753:Pyrones / Q000138:chemical synthesis* / Q000737:chemistry; D012428:Ruthenium / Q000737:chemistry*
chemical_list: D011422:Propionates; D011753:Pyrones; D012428:Ruthenium