Process for the production of isobutylbenzenes
US4822937A · kind A · utility
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13Claims
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Key dates
| Filing date | May 24, 1988 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | May 24, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C6/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of isobutylbenzenes in particular, isobutylbenzene itself, is provided. The process is in two stages and comprises (1) reacting a vinylcyclohexane with an isoolefin of formula (R)(R.sup.1)C.dbd.C(CH.sub.3).sub.2 in the presence of a dismutation catalyst to produce an isobutenylcyclohexene and (2) contacting the isobutenylcyclohexene with a dehydroisomerisation catalyst to produce an isobutylbenzene. Examples of vinylcyclohexenes which can be used include 4-vinylcyclohexene and styrene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.