Backfunctionalized imidazolinium salts and nhc carbene-metal complexes
AssigneeGovernment of the United States as Represented by the Secretary of the Air Force
InventorsRusty L. Blanski, Robert H. Grubbs
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Abstract
Backfunctionalized imidazolinium salts and methods of synthesizing the same and NHC carbene-metal complexes therefrom. For backfunctionalized imidazolinium salts of the formula: Wherein R1 is selected from the group consisting of an ester group, an amide group, and an aromatic group; R2 is selected from the group consisting of hydrogen, an ester group, an amide group, and an aromatic group; R3 and R4 are each an aliphatic group; and X is an anion; the method comprises cyclization of a halogenated acrylate with Hünig's base in a solvent.
Claims23
A backfunctionalized imidazolinium salt selected from the group of formulae consisting of:
- each of R3 and R4 being separately selected from the group consisting of a C1-C20 fluorinated alkyl group, a C1-C20 fluorinated aryl group, a C1-C20 fluorinated aliphatic group, and a C1-C20 aryl group;
- and
- X is an anion.
The N-heterocyclic carbene-metal complex of claim 5, further comprising:
- a second ligand comprising another free N-heterocyclic carbene of claim 54, the second ligand being coordinated to the metal.
Dependencies are inferred from the claim text.