Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element

Patent metadata

Field	Value
Publication number	US-2018102485-A1
Application number	US-201715840848-A
Country	US
Kind code	A1
Filing date	Dec 13, 2017
Priority date	Nov 22, 2011
Publication date	Apr 12, 2018
Grant date	—

Abstract

An organic EL device includes an anode, an emitting layer, an electron transporting zone and a cathode in this sequence, in which the electron transporting zone contains an aromatic heterocyclic derivative represented by a formula (1) below. In the formula (1), X 1 to X 3 are a nitrogen atom or CR 1 , and A is represented by a formula (2) below. In the formula (2), L 1 is s single bond or a linking group, and HAr is represented by a formula (3) below. In the formula (3), Y 1 is an oxygen atom, a sulfur atom or the like, and one of X 11 to X 18 is a carbon atom bonded to L 1 by a single bond and the rest of X 11 to X 18 are a nitrogen atom or CR 13 .

First claim

1 . An organic electroluminescence device comprising:
an anode; an emitting layer, an electron transporting zone; and a cathode in this sequence, wherein the electron transporting zone comprises an aromatic heterocyclic derivative represented by a formula (1) below,

wherein: X 1 to X 3 are a nitrogen atom or CR 1 , with a proviso that at least one of X 1 to X 3 is a nitrogen atom;
R 1 independently represents a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms;
A is represented by a formula (2) below,
[Formula 2]
(HAr) a -L 1 -  (2)

wherein: HAr is represented by a formula (3) below;
a is an integer of 1 to 5;
when a is 1, L 1 is a single bond or a divalent linking group;
when a is in a range of 2 to 5, L 1 is a trivalent to hexavalent linking group and HAr is the same or different;
the linking group is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, or a divalent to hexavalent residue induced from any one of a group formed by mutually bonding two or three of the substituted or unsubstituted-aryl group having 6 to 30 ring carbon atoms and the substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms;
the mutually bonded groups are the same or different,

wherein: X 11 to X 18 each are independently a nitrogen atom, CR 13 or a carbon atom bonded to L 1 by a single bond;
Y 1 is an oxygen atom, a sulfur atom, SiR 11 R 12 or a silicon atom bonded to each of R 11 and L 1 by a single bond;
L 1 is bonded by one of a carbon atom at X 11 to X 18 and R 11 to R 12 and a silicon atom at Y 1 ;
R 11 and R 12 represent the same as R 1 in the formula (1); R 11 and R 12 are the same or different;
R 13 independently represents a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms; a plurality of R 13 are mutually the same or different; adjacent R 13 optionally bond to each other to form a ring; and
in the above formula (1), Ar 1 and Ar 2 each are independently represented by the formula (2), or represent 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.

Assignees

• Idemitsu Kosan Co

Inventors

• Mizutani Sayaka
• Sado Takayasu

Classifications

• C07D409/14

  containing three or more hetero rings · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title

• C07F7/0816

  said ring comprising Si as a ring atom · CPC title

• C07D405/10 Primary

  linked by a carbon chain containing aromatic rings · CPC title

• C09K2211/1059

  containing three nitrogen atoms as heteroatoms · CPC title