(Figure Presented) A template containing two secondary dialkylammonium ion recognition sites for encirclement by olefin-bearing dibenzocrown-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.
Scopus Subject Areas
- Physical and Theoretical Chemistry
- Organic Chemistry