title: High selectivity production of propylene from 2-butene: non-degenerate pathways to convert symmetric olefins via olefin metathesis.
abstract: The first example of propylene production from 2-butene in promising yield is described by reacting trans-2-butene over tungsten hydrides precursor W-H/Al(2)O(3) at 150 °C and different pressures in a continuous flow reactor. The tungsten carbene-hydride active site operates as a "bi-functional catalyst" through the disfavoured 2-butene isomerisation on W-hydride and 2-butenes/1-butene cross-metathesis on W-carbene.
authors.affiliation: Université Lyon 1, Institut de Chimie Lyon, CPE Lyon CNRS, UMR 5265 C2P2, LCOMS, 43 Bd du 11 Novembre 1918, 69616 Villeurbanne Cedex, France.
authors.forename: Etienne
authors.initials: E
authors.lastname: Mazoyer
authors.forename: Kai C
authors.initials: KC
authors.lastname: Szeto
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Basset
authors.forename: Christopher P
authors.initials: CP
authors.lastname: Nicholas
authors.forename: Mostafa
authors.initials: M
authors.lastname: Taoufik