Preparation of 2,4,6-trialkylphenols
US4398048A · kind A · utility
5Cited by
6References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1981 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Oct 21, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Substantially improved yields of 2,4,6-trialkylphenols result from alkylating a mixture of phenol and 2,6-dialkylphenol, the latter being a by-product of the alkylation reaction. This results flows from an unexpected synergistic effect accompanying transalkylation. The continuous method of making 2,4,6-trialkylphenol based on this property affords the highly desirable trialkylated phenols in high yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.