Processes for preparing triphenylene
US8575412B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Oct 28, 2009 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | May 14, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes are provided for producing triphenylene by combining at least dodecahydrotriphenylene, a dehydrogenation catalyst such as palladium on carbon, and an aliphatic solvent having a boiling point greater than 180° C. to form a reaction mixture, heating the reaction mixture to at least about 180° C. but lower than the boiling point of the aliphatic solvent, maintaining the temperature of the reaction mixture at 180° C. but lower than the boiling point of the aliphatic solvent, and passing a purge fluid comprising an inert fluid through the reaction mixture, for a period of time adequate for production of triphenylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.