CATALYTIC CARBONYLATION CATALYSTS AND METHODS

摘要

In one aspect, the present invention provides catalysts for the carbonylation of heterocycles. The inventive catalysts feature metal-ligand complexes having cationic functional groups tethered to the ligand, wherein the tethered cationic groups are associated with anionic metal carbonyl species. The invention also provides methods of using the inventive catalysts to affect the ring opening carbonylation of epoxides.

主权项

1. A catalyst for the carbonylation of heterocycles comprising the combination of:
i) one or more cationic functional moieties, where each cationic functional moiety comprises a linker and 1 to 4 cationic functional groups; ii) one or more ligands to which at least one cationic functional moiety is covalently tethered wherein the one or more ligand(s) are coordinated to one or two metal atoms; and iii) at least one anionic metal carbonyl species associated with a cation present on the metal complex.