| abstract |
The arylamine derivative represented by the formula (1) not only provides a thin film having good solubility in organic solvents and solvent resistance, but also provides an organic EL device exhibiting good properties when applied as a hole transport layer. [Wherein, R independently represents a C1-C5 fluorine atom-containing alkyl group, Ar 1 independently represents an aryl group having 6 to 20 carbon atoms which may be substituted with Z 1 while having a crosslinking group, Ar 2 each independently represents at least one aryl group selected from formulas (2) to (4), Z 1 is a halogen atom, a nitro group, a cyano group, an amino group, or an amino group having 1 to 20 carbon atoms which may be substituted with Z 4 . represents an alkyl group of (In the formula, Ar 3 represents a hydrogen atom or an aryl group having 6 to 20 carbon atoms which may be substituted with Z 2 , and R 1 to R 39 independently represent a hydrogen atom, a halogen atom, etc.)] |