Method for preparing trifluoromethyl aromatic compound
US12404231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2024 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Mar 7, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/61
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided is a method for preparing a trifluoromethyl aromatic compound, including: mixing a trichloromethyl aromatic compound with an organic alkali hydrofluoride to obtain a mixture, and subjecting the mixture to fluorination to obtain a reaction solution; subjecting the reaction solution to solid-liquid separation to obtain an organic alkali hydrochloride wet product and a filtrate, drying the organic alkali hydrochloride wet product, and condensing and recycling a gas generated during the drying to obtain a condensed product; and purifying the filtrate and the condensed product by rectification to obtain the trifluoromethyl aromatic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.