Arylamine derivatives having fluorene skeleton, synthetic intermediates thereof, processes of producing those, and organic electrolumivescene devices
US7189877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2003 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Jul 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/6565
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Arylamine derivatives that can be utilized as hole transport or hole injection materials of organic electroluminescence devices, electrophotographic reactors, etc., and synthetic intermediates thereof, and processes of producing those. The arylamine derivative is represented by the general formula (1):wherein R1 to R4 each independently represents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a halogen atom, an amino group, etc.; Ar1 and Ar2 each independently represents a substituted or unsubstituted aryl group or hetero-aromatic group, and Ar1 and Ar2 may form a nitrogen-containing heterocyclic ring together with the nitrogen atom to which Ar1 and Ar2 bond; and Ar3 represents a substituted or unsubstituted arylene group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.