Oblon, McClelland, Maier & Neustadt, L.L.P.
Aromatic amine derivative, material for organic electroluminescent element, and organic electroluminescent element
An aromatic amine derivative is represented by a formula (1) below. In the formula (1), R2 to R5, R7 to R9 and R10 are each independently a hydrogen atom or a substituent. In the formula (1), R1 and R6 are represented by a formula (2) below, and L1 to L3 are each independently a single bond and the like. In the formula (2), Ar1 is a monovalent residue derived from the ring structure represented by a formula (4) below, X is an oxygen atom or a sulfur atom, and at least one of R11 to R18 is an alkyl group. In the formula (1), Ar2 is an aryl group or a monovalent residue derived from the ring structure represented by the formula (4).
IDEMITSU KOSAN CO., LTD.
H H H C C H H H C H C H C H H H C H C
H01L H01L H01L C09K C09K H01L H01L H01L C09B H05B C09B H01L C09K H01L H01L H01L C09K H01L C09K
inventional additional inventional additional additional inventional additional additional inventional inventional inventional inventional additional additional additional additional inventional additional additional
Hirokatsu Yumiko
Ito Mizuki