Template-directed olefin cross metathesis.
[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.
Cantrill
Stuart J
SJ
California NanoSystems Institute & Department of Chemistry and Biochemistry, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA.
Grubbs
Robert H
RH
Lanari
Daniela
D
Leung
Ken C-F
KC
Nelson
Alshakim
A
Poulin-Kerstien
Katherine G
KG
Smidt
Sebastian P
SP
Stoddart
J Fraser
JF
Tirrell
David A
DA
D000475:Alkenes / Q000737:chemistry*; D002384:Catalysis; D002851:Chromatography, High Pressure Liquid; D019281:Dimerization; D015394:Molecular Structure; D012428:Ruthenium / Q000737:chemistry
D000475:Alkenes; D012428:Ruthenium