Preparation of alkylphenols
US4260833A · kind A · utility
5Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1979 |
| Grant date | Apr 7, 1981 |
| Priority date | — |
| Expiry date | Nov 30, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for introducing a plurality of alkyl groups into the aromatic ring of a hydroxy-substituted aromatic compound comprises contacting said aromatic compound with an olefin in the presence of a lithiated alumina as catalyst and recovering the product. When said aromatic compound is phenol, said olefin is iso-butylene, and said catalyst is lithiated alumina, 2,4-di-t-butylphenol is formed with superior selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.