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US 11,819,837 B2Granted
Monocarbonyl ruthenium and osmium catalysts
AssigneesUniversita Degli Studi Di, Innovation Factory, Inc.
InventorsWalter Baratta, Salvatore Baldino, Steven Giboulot
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Abstract
The invention relates to monocarbonyl complexes of ruthenium and osmium with bi- and tridentate nitrogen and phosphine ligands. The invention relates to methods for preparing these complexes and the use of these complexes, isolated or prepared in situ, as catalysts for reduction reactions of ketones and aldehydes both via transfer hydrogenation or hydrogenation with hydrogen.
Claims17
A hexacoordinate complex of formula (1):
- [MX(CO)L′c]Wd (1)
- Wherein
- M is Ru;
- c and d are 1;
- X is C1-C20 carboxylate or C1-C20 alkoxide;
- W is halide, C1-C20 carboxylate or C1-C20 alkoxide;
- L′ is a PNN compound of formula (V)
- wherein
- R24-R29 are, independently, H, a C1-C20 aliphatic group, or a C5-C20 aromatic group.
6 more elements
Dependencies are inferred from the claim text.