Backfunctionalized imidazolinium salts and NHC carbene-metal complexes
US10538494B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 14, 2018 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Aug 14, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F15/0046
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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 selected from the group consisting of a C1-C20 alkyl group, C1-C20 partially fluorinated alkyl group, an aryl group, an aryl group with para CF3 functionality, an aryl group having C1-C20 partially fluorinated alkyl groups or partially fluorinated alkoxy groups, and a C1-C20 partially fluorinated aliphatic group, and a C1-C20 aryl group; and X is an anion. The method comprises cyclization of a halogenated acrylate with a formamidine with Hünig's base in a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.