Oblon, McClelland, Maier & Neustadt, L.L.P.
Aromatic amine derivative and organic electroluminescence element using same
An aromatic amine derivative is represented by the following formula (1). In the formula (1), R1 to R10 each independently represent a hydrogen atom and a substituent. In the formula (1); R1 is represented by the following formula (2); any one of R2 to R5 and R7 to R10 is represented by the following formula (2); and L1 to L3 each independently represent a single bond, a divalent residue of an aryl group, or the like. In the formula (2); Ar1 is a monovalent substituent having a partial structure represented by the following formula (3); X represents an oxygen atom or a sulfur atom; and A and B represent a six-membered ring. In the formula (2), Ar2 is an aryl group, a monovalent substituent having a partial structure represented by the formula (3), and the like.
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C C C C H C C H H C H H C H H H
C09B C07D C09B C07D H01L C09B C09K H01L H01L C09K H01L H01L C09B H01L H01L H01L
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Hirokatsu Yumiko
Ito Mizuki