Oblon, McClelland, Maier & Neustadt, L.L.P.
Nitrogenated heterocyclic ring derivative and organic electroluminescent element comprising same
A nitrogen-containing heterocyclic derivative represented by the following formula (1):wherein any “12-a” groups of R1 to R12 are independently a hydrogen atom, a fluorine atom, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms; any “a” groups of R1 to R12 are independently a single bond which is bonded to L1; L1 is a single bond, a “b+1” valent substituted or unsubstituted hydrocarbon ring group having 6 to 30 ring carbon atoms or a “b+1” valent substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms;
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C C H C C C C C H H H H H C C H
C07D C07D H01L C07D C07D C07D C07D C07D H01L H01L H01L H01L H01L C07D C07D H01L
inventional inventional additional inventional inventional inventional inventional inventional inventional additional inventional additional inventional inventional inventional inventional
Yuichiro Masahiro Hirokatsu Sayaka
Kawamura Kawamura Ito Mizutani