Method for manufacturing 1,4-bis (4-phenoxybenzoyl)benzene at an elevated temperature
US11434188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2019 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Nov 7, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for manufacturing 1,4-bis(4-phenoxybenzoyl)benzene, including: providing a solvent, a Lewis acid, a first reactant and a second reactant, wherein the first reactant and the second reactant are respectively terephthaloyl chloride and diphenyl ether, or reversely; mixing the first reactant in the solvent to make a starting mixture; and, adding the second reactant to the starting mixture; wherein the Lewis acid is mixed, at least partly, to the starting mixture before adding the second reactant to the starting mixture, and/or wherein the Lewis acid is mixed, at least partly, with the second reactant and added together to the starting mixture, and wherein the temperature of the starting mixture is greater than 5° C. during at least part of the step of adding the second reactant to the starting mixture; so as to obtain a product mixture comprising a 1,4-bis(4-phenoxybenzoyl)benzene-Lewis acid complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.