Method of making a dialdeyhde
US10544076B1 · kind B1 · utility
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13References
6Claims
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Key dates
| Filing date | Sep 4, 2019 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Sep 4, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
We have discovered that a di-epoxide can be converted to a dialdehyde using an amorphous silica-alumina catalyst. The method comprises contacting a di-epoxide mixed in an organic solvent with a silica-alumina catalyst to form a solvent and dialdehyde reaction product mixture and separating said dialdehyde from said reaction mixture. The dialdehydes have utility as chemical intermediates, and particular utility in processes to make enol ether compounds which can be used in applications as plasticizers, diluents, wetting agents, coalescing aids and as intermediates in chemical processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.