Process for preparing alkyl-substituted aromatic hydrocarbons
US4962254A · kind A · utility
6Cited by
7References
28Claims
0Family size
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Key dates
| Filing date | Aug 9, 1989 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Aug 9, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An alkyl-substituted hydrocarbon is prepared by alkylating an alkyl aromatic hydrocarbon having at least one hydrogen atom at an alpha-position in a side chain with an olefin in the presence of a solid base which is obtainable by heating an alumina, an alkali metal hydroxide and an alkali metal hydride or an alumina containing at least 1.3% by weight of water and an alkali metal hydride in an inert gas atmosphere at a temperature of 200.degree. to 800.degree. C. as a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.