Nitrogenated heterocyclic ring derivative and organic electroluminescent element comprising same
US9126943B2 · kind B2 · utility
3Cited by
10References
23Claims
0Family size
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Key dates
| Filing date | Jan 13, 2011 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | May 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A nitrogen-containing heterocyclic derivative represented by the following formula (1):wherein any “12-a” groups of R1 to R12 are independently a hydrogen atom, a fluorine atom, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms; any “a” groups of R1 to R12 are independently a single bond which is bonded to L1; L1 is a single bond, a “b+1” valent substituted or unsubstituted hydrocarbon ring group having 6 to 30 ring carbon atoms or a “b+1” valent substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms;
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.