Method for producing biphenyls
US3950434A · kind A · utility
6Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1973 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Jun 28, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Biphenyl or nucleus-substituted biphenyl can be prepared from benzene or nucleus-substituted benzene and oxygen or oxygen-containing gas in one step according to an equation ##SPC1## Wherein X is H, lower alkyl having 1 to 6 carbon atoms Cl, NO.sub.2, or lower alkoxy having 1 - 3 carbon atoms and Y is H or CH.sub.3, with excellent yield by heating the reactants in the presence, as a catalyst, of palladium or a palladium compound and sulfuric acid or sulfuric acid and a lower saturated fatty acid added to the reaction system and further in the presence or in the absence of an alkali metal salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.