Dimerization of norbornadiene to exo-exo hexacyclic dimer
US4207080A · kind A · utility
6Cited by
5References
12Claims
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Key dates
| Filing date | Dec 11, 1975 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Dec 11, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Norbornadiene [bicyclo(2.2.1)heptadiene-2,5] is dimerized to the exo-exo stereoisomer of the hexacyclic dimer of norbornadiene at both an excellent selectivity and conversion using an effective amount of a three component catalytic system of diethylaluminum chloride, ferric or ferrous or cobaltic or cobaltous acetylacetonate and bis(1,2-diphenylphosphino)ethane. The reaction rate is rapid. After hydrogenation the exo-exo hexacyclic dimer can be used as a component of high energy fuel for either jet or rocket propulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.