| abstract |
For example, arylamine compounds represented by formula (1) or (2) have good solubility in organic solvents and provide a varnish having good storage stability and a thin film having good optical properties, and an organic EL element having good properties can be achieved when this thin film is applied to a hole injection layer or the like. (R1 each independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, a C1-20 alkyl group, a C1-20 alkyl halide group, a C1-20 alkoxy group, or a C6-20 aryl group, R2 each independently represent an optionally substituted aryl group optionally containing a hetero atom, Ars each independently represent an optionally substituted arylene group optionally containing a hetero atom, and X represents an optionally substituted arylene group optionally containing a hetero atom.) |