Preparation of diaryl ethers and diaryl sulfides
US4898982A · kind A · utility
6Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1987 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Nov 16, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/09
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for the preparation of diaryl ethers and diaryl sulfides by heating a phenol, a thiophenol, a .beta.-hydroxy-substituted fused armomatic ring-system compound or a .beta.-thio-substituted fused aromatic ring-system compound in the presence of thoria deposited on a neutral support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.