Process for preparing polyalkyl perylenes, perylenes obtained by this process, and organic materials with ESR properties derived from the same
US4956508A · kind A · utility
2Cited by
1References
1Claims
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Key dates
| Filing date | Feb 8, 1989 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Feb 8, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for preparing a polyalkyl perylene which consists in subjecting the corresponding polyalkyl 1,1'-dinaphthalene derivative to a cyclodehydrogenation reaction, by means of an alkali metal. It also relates to the polyalkyl perylene obtained, and to the organic material derived therefrom exhibiting an electron spin resonance spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.