Chelate-controlled diastereoselective hydrogenation with heterogeneous catalyst
US9751848B2 · kind B2 · utility
1Cited by
4References
10Claims
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Key dates
| Filing date | Sep 28, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Sep 28, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A catalyst, method of using, and use of a hydrogenation catalyst, preferably palladium on a support, preferably alumina or activated charcoal support. This in the presence of lithium salts, with salts such as the borates being preferred. This provides hydrogenation of precursors to give rise to a stereoselective, such as diastereoselective bias in the product of alkene hydrogenation using the catalyst.This equation, using the preferred substrate, best illustrates the invention:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.