title: Synthesis of alkenyl boronates from allyl-substituted aromatics using an olefin cross-metathesis protocol.
abstract: An efficient synthesis of 3-aryl-1-propenyl boronates from pinacol vinyl boronic ester and allyl-substituted aromatics by cross metathesis is reported. Although the allylbenzene derivatives are prone to isomerization reaction under metathesis conditions, we found that some ruthenium catalysts are effective for this methodology. This strategy thus provides an interesting alternative approach to alkyne hydroboration, leading to the preparation of unknown compounds. Moreover, the boron substituent can be replaced by various functional groups in good yields.
authors.affiliation: Sciences Chimiques de Rennes, UMR 6226 CNRS- Université de Rennes 1, 263, Avenue du Général Leclerc, Campus de Beaulieu, Bâtiment 10A, 35042 Rennes Cedex, France.
authors.forename: Rémy
authors.initials: R
authors.lastname: Hemelaere
authors.forename: François
authors.initials: F
authors.lastname: Carreaux
authors.forename: Bertrand
authors.initials: B
authors.lastname: Carboni
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D001897:Boronic Acids / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry; D012428:Ruthenium / Q000737:chemistry
chemical_list: D000475:Alkenes; D001897:Boronic Acids; D009942:Organometallic Compounds; D012428:Ruthenium