Oblon, McClelland, Maier & Neustadt, L.L.P.
Nitrogen-containing heteroaromatic ring compound
A nitrogen-containing heteroaromatic compound is represented by the following formula (A).wherein Y is an oxygen atom or a sulfur atom, M is a substituted or unsubstituted nitrogen-containing heteroaromatic group, and Ar2 is a substituted aromatic hydrocarbon group having 6 to 18 ring carbon atoms, a substituted or unsubstituted monocyclic heteroaromatic group having 5 or 6 ring atoms, a dibenzofuran ring group that may be substituted with a substituent (excluding a 3-carbazolyl group and an N-carbazolyl group), a dibenzothiophene ring group that may be substituted with a substituent (excluding a 3-carbazolyl group and an N-carbazolyl group), or a nitrogen-containing polycyclic group among nitrogen-containing polycyclic groups respectively represented by the following formulas (1) to (5).
IDEMITSU KOSAN CO., LTD.
H C H H C C H H C C C C C C H H C
H01L C09K H01L H01L C09K C09K H01L H01L C09K C09K C09K C07D C09K C09K H01L H05B C09K
additional additional inventional inventional additional additional inventional additional additional inventional additional inventional additional additional additional inventional additional
Kei Ryohei
Yoshida Hashimoto