Diaryl ether condensation reactions
US6762329B2 · kind B2 · utility
69Cited by
17References
75Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Apr 25, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
One aspect of the present invention relates to novel reaction conditions that allow the efficient synthesis of diaryl ethers from arenes bearing a leaving group and arenols under relatively mild conditions. Another aspect of the present invention relates to the dramatic effects of acidic activators on Ullmann-type couplings involving electron-poor and/or relatively insoluble substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.