Method of ortho-alkylating phenol
US4933509A · kind A · utility
12Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1989 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is provided for ortho-alkylating phenol by passing a mixture of phenol and methanol through a heated magnesium oxide catalyst. The magnesium oxide catalyst is made by calcining magnesium carbonate and thereafter further heating the calcined product in the presence of steam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.