Compound having benzotriazole ring structure and organic electroluminescent element
US9005776B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 17, 2010 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound having a benzotriazole ring structure and a formula (1):wherein Ar is a substituted or unsubstituted aromatic hydrocarbon group, aromatic heterocyclic group, or condensed polycyclic aromatic group; A and B are the same as or different from each other and each represent a hydrogen atom or a monovalent group of formula (2), provided that A and B are not simultaneously hydrogen atoms:wherein R1 to R8 are the same as or different and each represent a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or condensed polycyclic aromatic group; m is an integer of 0, 1 or 2; X represents a carbon atom or a nitrogen atom; when X is a nitrogen atom, the nitrogen atom does not have substituents or bonding groups of R1, R2, R3 and R4; and when m is 2, a plurality of R1, R2, R3, R4 and X each are the same or different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.