title: Template-directed olefin cross metathesis.
abstract: [reaction: see text] A template containing two secondary dialkylammonium ion recognition sites for encirclement by olefin-bearing dibenzo[24]crown-8 derivatives has been used to promote olefin cross metatheses with ruthenium-alkylidene catalysts. For monoolefin monomers, the rates of metatheses and yields of the dimers are both amplified in the presence of the template. Likewise, for a diolefin monomer, the yield of the dimer is enhanced in the presence of the template under conditions where higher oligomers are not formed.
authors.affiliation: California NanoSystems Institute & Department of Chemistry and Biochemistry, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA.
authors.forename: Stuart J
authors.initials: SJ
authors.lastname: Cantrill
authors.forename: Robert H
authors.initials: RH
authors.lastname: Grubbs
authors.forename: Daniela
authors.initials: D
authors.lastname: Lanari
authors.forename: Ken C-F
authors.initials: KC
authors.lastname: Leung
authors.forename: Alshakim
authors.initials: A
authors.lastname: Nelson
authors.forename: Katherine G
authors.initials: KG
authors.lastname: Poulin-Kerstien
authors.forename: Sebastian P
authors.initials: SP
authors.lastname: Smidt
authors.forename: J Fraser
authors.initials: JF
authors.lastname: Stoddart
authors.forename: David A
authors.initials: DA
authors.lastname: Tirrell
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D002384:Catalysis; D002851:Chromatography, High Pressure Liquid; D019281:Dimerization; D015394:Molecular Structure; D012428:Ruthenium / Q000737:chemistry
chemical_list: D000475:Alkenes; D012428:Ruthenium