Process for the preparation of 4,4'-dibromobiphenyl in a solvent medium and with a catalyst
US4983781A · kind A · utility
16Cited by
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14Claims
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Key dates
| Filing date | Feb 23, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Feb 23, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The preparation of 4,4'-dibromobiphenyl. A biphenyl is reacted with bromine in a solvent in the presence of a catalytic system based on at least one component selected from the group consisting of Lewis acids and iodine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.