| 摘要 |
According to the present invention, there are provided an indenoindole derivative represented by the following general formula (1); and an organic electroluminescent element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above compound is used as a constituent material for the at least one organic layer. The indenoindole derivative of the present invention provides an organic compound, which is excellent in hole injection/transport performance, has electron blocking capability, is highly stable in a thin film state, and excels in heat resistance, as a material for a high efficiency, high durability organic electroluminescent element. An organic electroluminescent element formed using this compound is highly efficient and highly durable.; |
| 主权项 |
1. An indenoindole derivative represented by the following general formula (1):where
A represents a single bond, a divalent aromatic hydrocarbon group, or a divalent aromatic heterocyclic group, Ar1, Ar2 and Ar3 may be the same or different, and each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group, and Ar2 and Ar3 may bind to each other via a single bond, a methylene group, an oxygen atom, or a sulfur atom to form a ring, R1 to R7 may be the same or different, and each represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, a monovalent aromatic hydrocarbon group, a monovalent aromatic heterocyclic group, or an aryloxy group, and may bind to each other via a single bond, a methylene group, an oxygen atom, or a sulfur atom to form a ring, R8 and R9 may be the same or different, and each represent an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, a monovalent aromatic hydrocarbon group, a monovalent aromatic heterocyclic group, or an aryloxy group, and R8 and R9 may bind to each other via a single bond, a methylene group, an oxygen atom, or a sulfur atom to form a ring, and when A is a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, A and Ar2 may bind to each other via a methylene group, an oxygen atom, or a sulfur atom to form a ring. |
