Compound, organic electroluminescent element material, organic electroluminescent element, and electronic device

Patent metadata

Field	Value
Publication number	US-2016181525-A1
Application number	US-201514910156-A
Country	US
Kind code	A1
Filing date	Jul 13, 2015
Priority date	Jul 11, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

A compound represented by formula (A-0) or (B-0) is useful as a material for organic EL devices which realizes an organic EL device exhibiting high emission efficiency even when driving at a low voltage and has a long lifetime:

wherein R 1 to R 4 , n1, m2, k3, k4, L 0 to L 2 , Ar 1 , and Ar 2 are as defined in the description.

First claim

1 . A compound represented by formula (A-0) or (B-0):

wherein R 1 to R 4 each independently represent a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group, and when R 1 to R 4 are each plurality in number, groups R 1 to groups R 4 may be the same or different;
k3 and k4 each independently represent an integer of 0 to 5, m2 represents an integer of 0 to 4, and n1 represents an integer of 0 to 3;
L 0 to L 2 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heteroarylene group having 5 to 50 ring atoms;
Ar 1 and Ar 2 each independently represent a group represented by any of formulae (a) to (c):

wherein R 5 and R 6 are each independently the same as defined with respect to R 1 , when R 5 and R 6 are each plurality in number, groups R 5 and groups R 6 may be the same or different, and R 5 and R 6 may be bonded to each other to form a ring structure;
m5 and m6 each independently represent an integer of 0 to 4, and each n5 independently represents an integer of 0 to 3; and
* represents a bonding site to the nitrogen atom, L 1 , or L 2 in formula (A-0) or (B-0).

2 . The compound according to claim 1 , wherein the compound is represented by formula (A-1):

wherein R 1 to R 4 , n1, m2, k3, k4, L 1 , L 2 , Ar 1 , and Ar 2 are as defined in claim 1 .

3 . The compound according to claim 1 , wherein the compound is represented by formula (A-2):

wherein R 1 , R 2 , n1, m2, L 0 to L 2 , Ar 1 , and Ar 2 are as defined in claim 1 .

4 . The compound according to claim 1 , wherein the compound is represented by formula (A-3):

wherein L 0 to L 2 , Ar 1 , and Ar 2 are as defined in claim 1 .

5 . The compound according to claim 1 , wherein the compound is represented by formula (A-4):

wherein R 1 to R 6 , n1, m2, k3, k4, n5, m6, L 0 to L 2 , and Ar 2 are as defined in claim 1 , and X represents —O— or —S—.

6 . The compound according to claim 5 , wherein the compound is represented by formula (A-5) or (A-6):

wherein R 1 to R 6 , n1, m2, k3, k4, n5, m6, L 0 to L 2 , and Ar 2 are as defined in claim 1 , and X represents —O— or —S—.

7 . The compound according to claim 5 , wherein the compound is represented by formula (A-7) or (A-8):

wherein R 1 to R 6 , n1, m2, k3, k4, n5, m6, L 0 , L 2 , and Ar 2 are as defined in claim 5 , R 7 is the same as defined with respect to R′ in claim 5 , when more than one R 7 occurs, groups R 7 may be the same or different, two selected from groups R 7 may be bonded to each other to form a ring structure, m7 represents an integer of 0 to 4, and X represents —O— or —S—.

8 . The compound according to claim 1 , wherein the compound is represented by formula (B-1):

wherein R 1 to R 4 , n1, m2, k3, k4, L 1 , L 2 , Ar 1 , and Ar 2 are as defined in claim 1 .

9 . The compound according to claim 1 , wherein the compound is represented by formula (B-2):

wherein R 1 to R 4 , n1, m2, k3, k4, L 1 , L 2 , Ar 1 , and Ar 2 are as defined in claim 1 , R 8 is the same as defined with respect to R 1 in claim 1 , when more than one R 8 occurs, groups R 8 may be the same or different, two selected from groups R 8 may be bonded to each other to form a ring structure, and m8 represents an integer of 0 to 4.

10 . The compound according to claim 1 , wherein the compound is represented by formula (B-3):

wherein R 1 , R 2 , n1, m2, L 0 to L 2 , Ar 1 , and Ar 2 are as defined in claim 1 .

11 . The compound according to claim 1 , wherein the compound is represented by formula (B-4):

wherein L 0 to L 2 , Ar 1 , and Ar e are as defined in claim 1 .

12 . The compound according to claim 1 , wherein the compound is represented by formula (B-5):

wherein R 1 to R 6 , n1, m2, k3, k4, n5, m6, L 0 to L 2 , and Ar 2 are as defined in claim 1 , and X represents —O— or —S—.

13 . The compound according to claim 12 , wherein the compound is represented by formula (B-6) or (B-7):

wherein R 1 to R 6 , n1, m2, k3, k4, n5, m6, L 0 to L 2 , and Ar 2 are as defined in claim 12 , and X represents —O— or —S—.

14 . The compound according to claim 12 , wherein the compound is represented by formula (B-8) or (B-9):

wherein R 1 to R 6 , n1, m2, k3, k4, n5, m6, L 0 , L 2 , and Ar 2 are as defined in claim 12 , R 7 is the same as defined with respect to R 1 in claim 12 , when more than one R 7 occurs, groups R 7 may be the same or different, two selected from groups R 7 may be bonded to each other to form a ring structure, m7 represents an integer of 0 to 4, and X represents —O— or —S—.

15 . The compound according to claim 1 , wherein L 0 to L 2 each independently represent a single bond or a group represented by any of formulae (i) and (ii):

wherein each R is independently the same as defined with respect to R 1 in claim 1 , when more than one R occurs, groups R may be the same or different, two selected from groups R may be bonded to each other to form a ring structure, each m independently represents an integer of 0 to 4, and * and ** each represent a bonding site.

16 . The compound according to claim 1 , wherein at least one selected from Ar 1 and Ar 2 represents a group represented by any of formulae (b-1), (b-2), (c-1), and (c-2

Assignees

• Idemitsu Kosan Co

Inventors

• Kato Tomoki
• Yabunouchi Nobuhiro
• Funahashi Masakazu
• Fujiyama Takahiro

Classifications

• C09K11/06

  containing organic luminescent materials · CPC title

• C07C211/61 Primary

  with at least one of the condensed ring systems formed by three or more rings · CPC title

• C09K2211/1011

  Condensed systems · CPC title

• C07C2603/42

  containing only six-membered rings · CPC title

• C09K2211/1014

  bridged by heteroatoms, e.g. N, P, Si or B · CPC title