US 8,008,489 B2 · Quinoxaline derivative, and light-emitting element, light-emitting device, electronic device using the quinoxaline derivative

Abstract

It is an object to provide a novel bipolar organic compound. In particular, it is an object to provide a bipolar organic compound excellent in thermal stability. Further, it is another object to provide a bipolar organic compound which is electrochemically stable. A quinoxaline derivative represented by a general formula (1) is provided. Further, since the quinoxaline derivative represented by the general formula (1) is bipolar, the use of the quinoxaline derivative of the present invention allows fabrication of a light-emitting element and a light-emitting device with a low driving voltage and low power consumption. Furthermore, a light-emitting element with high luminous efficiency can be obtained.

Claims14

Dependent claims

A quinoxaline compound represented by the structure

wherein:
R1, R2, R3, R4 and R5 each represent any of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 25 carbon atoms;
Ar1 represents an aryl group having 6 to 25 carbon atoms;
α represents an arylene group having 6 to 25 carbon atoms;
A is selected from substituents represented by the following formulae
β represents an arylene group having 6 to 25 carbon atoms;
Ar3, Ar4 and Ar5 each represent an aryl group having 6 to 25 carbon atoms;
and
R31 represents any of a hydrogen atom, an alkyl group having 1 to 4 carbon-atoms, or an aryl group having 6 to 25 carbon atoms.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/699,913Filed 4 Feb 2010 · division

Priority

JP 2006-07790021 Mar 2006

Published

US 2010/0141130 A110 Jun 2010

Granted

30 Aug 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification22 codes

C07D 241/12
Having three double bonds between ring members or between ring members and non-ring members: with only hydrogen atoms, hydrocarbon or substituted…
C07D 241/42
Benzopyrazines: with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
C07D 241/44
Benzopyrazines: with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or…
C07D 403/12
Containing two hetero rings: linked by a chain containing hetero atoms as chain links

Quinoxaline derivative, and light-emitting element, light-emitting device, electronic device using the quinoxaline derivative

Life of this patent

Quinoxaline derivative, and light-emitting element, light-emitting device, electronic device using the quinoxaline derivative

Life of this patent

Abstract

Claims14