Processes for preparing 2,5-dichlorophenol
US11008276B2 · kind B2 · utility
0Cited by
28References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2019 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Dec 23, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes for producing 2,5-dichlorophenol and 3,6-dichloro-2-methoxybenzoic acid are described. Various processes for isomerizing 2,4-dichlorophenol over a zeolite catalyst to form 2,5-dichlorophenol are provided. Processes for preparing 2,5-dichlorophenol including hydroxylating 1,4-dichlorobenzene are also described. The present invention also relates to processes for producing 3,6-dichloro-2-methoxybenzoic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.