Method for purifying phosphorus-containing olefin compound salt and method for producing olefin compound using purified product obtained thereby
US12258364B2 · kind B2 · utility
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Key dates
| Filing date | Jan 26, 2022 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Mar 4, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/5304
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided is a method for purifying a phosphorus-containing olefin compound salt as a raw material or an intermediate that is useful to increase the purity of a target product in a method for producing an olefin compound and that can be applied to the production method, and a method for producing an olefin compound using a purified product obtained thereby.Specifically, provided is a method for purifying a phosphorus-containing olefin compound salt, comprising reprecipitating and/or recrystallizing a solid comprising at least one phosphorus-containing olefin compound salt selected from the group consisting of:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.