Catalysts and related processes for producing optically pure beta-lactones from aldehydes and compositions produced thereby
US9718052B2 · kind B2 · utility
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Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/845
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Bi-functional cobalt-containing catalysts useful for making stereospecific compounds and compositions, along with methods of making, and uses thereof in the syntheses of optically pure β-lactones from aldehydes and ketene are described. Precursors, intermediates, compositions, and particular features of the use if the compositions, such as high enantiomeric selectivity, high yield and low mole percent of catalyst useful are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.