Method for preparing 4,4' difluorobiphenyl
US4775764A · kind A · utility
1Cited by
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11Claims
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Assignee
Inventor
Key dates
| Filing date | Jul 28, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Jul 28, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/2632
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved method for preparing 4,4' difluorobiphenyl by reacting a parafluorinated Grignard reagent and a parafluorinated halophenyl in solution and in the presence of free palladium producing catalysts is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.