Cyclization of 1,5-hexadiene to cyclohexene
US4187386A · kind A · utility
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5References
19Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 29, 1978 |
| Grant date | Feb 5, 1980 |
| Priority date | — |
| Expiry date | Dec 29, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C5/31
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,5-Hexadiene is cyclized to cyclohexene by contacting 1,5-hexadiene with a mixture of a first catalyst selected from the group consisting of chromium oxides, chromium chlorides, chromium bromides, molybdenum oxides, molybdenum chlorides, molybdenum bromides, tungsten oxides, tungsten chlorides, tungsten bromides, iron oxides, cobalt oxides, nickel oxides, elemental sulfur, SiO.sub.2, Al.sub.2 O.sub.3, vanadium metal, vanadium oxides, VOF.sub.3, and mixtures thereof, and a second catalyst selected from a tin (IV) halide and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.