Ruthenium- or osmium-based complex catalysts
US9802972B2 · kind B2 · utility
0Cited by
14References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jun 6, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides novel ruthenium or osmium based complex structures with a unique combination of ligands comprising a Schiff-base type ligand, a N-heterocyclic carbene ligand and a CO ligand which can be prepared according to two different routes involving easily accessible starting materials and which represent excellent catalysts for hydrogenating unsaturated compounds, oligomers and polymers, in particular at unforeseeably low temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.