IP Library Granted Patent US 10,396,288
Granted Patent B2
US 10,396,288 · App. 14/909,783 · Granted Aug 27, 2019

Organic electroluminescent element and electronic device

Inventors: Hirokatsu Ito (Ichihara, JP); Masahiro Kawamura (Chiba, JP); Yumiko Mizuki (Basel, CH); Tasuku Haketa (Chiba, JP); Tomoharu Hayama (Utsunomiya, JP)
Assignee: IDEMITSU KOSAN CO., LTD.
H01L51/0056C07C13/62C07C211/61C07C255/58C07D209/86C07D213/16C07D213/22C07D235/08C07D235/18C07D237/08C07D239/26C07D239/74C07D251/24C07D307/77C07D307/91C07D333/76C07D471/04C07D487/04C07F7/081C09B1/00C09B57/00C09B57/001C09B57/008C09B69/008C09K11/025C09K11/06H05B33/20C07C2601/14C07C2603/18C07C2603/24C07C2603/26C07C2603/40C07C2603/42C07C2603/50C07C2603/52C07C2603/54C09K2211/1007C09K2211/1011C09K2211/1014C09K2211/1059H01L51/006H01L51/0054H01L51/0058H01L51/0061H01L51/0073H01L51/5012H01L51/5016H01L51/5056H01L51/5072H01L51/5096H01L2251/308
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Quick Facts
Patent No.
US 10,396,288
App. No.
14/909,783
Granted
Aug 27, 2019
Kind
B2
Abstract

An organic EL device with high emission efficiency, an electronic equipment including the organic EL device, and a compound providing the organic EL device are provided. The compound is represented by formula (1): wherein Ar 1 represents a substituted or unsubstituted naphthalene ring; the substituent on the naphthalene ring is at least one selected from a fluorine atom, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, a group represented by —Si(R 101 )(R 102 )(R 103 ), and a group represented by —Z—R a ; R 1 and R 2 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, a group represented by —Si(R 101 )(R 102 )(R 103 ), an aryl group, or a heteroaryl group; R 11 to R 18 each independently represent a hydrogen atom, a fluorine atom, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, a group represented by —Si(R 101 )(R 102 )(R 103 ), or a group represented by —Z—R a ; each Z represents a single bond, an arylene group, a heteroarylene group, or a divalent linking group in which 2 to 4 groups selected from the above groups are linked together; R a represents a group represented by —N(R 104 )(R 105 ), an aryl group, or a heteroaryl group; and R 101 to R 105 each represent a hydrogen atom, an alkyl group, a cycloalkyl group, aryl group, or a heteroaryl group; provided that at least one selected from the substituent on the naphthalene ring and R 11 to R 18 represents a group represented by —Z—R a .

Claims (148)

1. A compound is represented by any of formulae (3) and (4-2):

wherein:

R 1 and R 2 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a group represented by —Si(R 101 )(R 102 )(R 103 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; and

R 11 to R 18 , and R 25 to R 36 each independently represents a hydrogen atom, a fluorine atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a group represented by —Si(R 101 )(R 102 )(R 103 ), a group represented by —N(R 104 )(R 105 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, or a group represented by —Z—R a ;

R 101 to R 105 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms;

L 1 and L 2 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the arylene group and the heteroarylene group are linked together;

Ar 2 and Ar 1 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms

the group represented by —Z—R a is represented by formula (b):

—Z 2 —HAr  (b);

—HAr in formula (b) is a group selected from the following groups:

Z 1 and Z 2 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the arylene group and the heteroarylene group are linked together;

each R c independently represents a fluorine atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 30 carbon atoms which has an aryl group having 6 to 30 ring carbon atoms, an amino group, a mono- or dialkylamino group having an alkyl group having 1 to 20 carbon atoms, a mono- or diarylamino group having an aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a mono-, di- or tri-substituted silyl group having a substituent selected from an alkyl group having 1 to 20 carbon atoms and an aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, a halogen atom, a cyano group, or a nitro group;

when more than one R c occurs in each group, groups R c may be the same or different;

R d represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; and

each p1 independently represents an integer of 0 to 4, each p2 independently represents an integer of 0 to 3, p3 represents an integer of 0 to 2, p4 represents an integer of 0 to 7, and p5 represents an integer of 0 to 5,

provided that one to four selected from R 11 to R 18 and R 25 to R 30 of formula (3) each represent a group represented by —Z—R a .

2. The compound according to claim 1 , wherein only one or two selected from R 11 to R 18 and R 25 to R 30 in formula (3), and only one or two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are represented by formula (b).

3. The compound according to claim 1 , wherein R 28 in formula (3) is represented by formula (b).

4. The compound according to claim 1 , wherein Z 1 is a single bond.

5. The compound according to claim 1 , wherein Ar 2 and Ar 3 each represent a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

6. The compound according to claim 1 , wherein L 1 and L 2 are both single bonds, and Ar 2 and Ar 3 each independently represent a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group.

7. A material for organic electroluminescence devices, the material comprising the compound according to claim 1 .

8. An organic electroluminescence device, comprising:

an organic thin film layer between a cathode and an anode,

wherein:

the organic thin film layer comprises one or more layers comprising a light emitting layer; and

at least one layer of the organic thin film layer comprises the compound represented by formula (3) or (4-2) according to claim 1 .

9. The organic electroluminescence device according to claim 8 , wherein the light emitting layer comprises the compound represented by formula (3) or (4-2).

10. The organic electroluminescence device according to claim 8 , wherein the at least one layer of the organic thin film layer comprises the compound represented by formula (3) or (4-2) and an anthracene derivative represented by formula (5):

wherein:

Ar 11 and Ar 12 each independently represent a substituted or unsubstituted monocyclic group having 5 to 50 ring atoms or a substituted or unsubstituted fused ring group having 8 to 50 ring atoms; and

R 101 to R 108 are each independently selected from a hydrogen atom, a substituted or unsubstituted monocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted fused ring group having 8 to 50 ring atoms, a group comprising a combination of the monocyclic group and the fused ring group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, and a cyano group.

11. The organic electroluminescence device according to claim 8 , wherein the organic thin film layer comprises an electron transporting layer, and the electron transporting layer comprises said compound represented by formula (3) or (4-2).

12. The organic electroluminescence device according to claim 8 , wherein the organic thin film layer comprises a hole transporting layer comprising the compound represented by formula (3) or (4-2).

13. The organic electroluminescence device according to claim 8 , wherein the organic thin film layer comprises an electron transporting layer and a blocking layer between the electron transporting layer and the light emitting layer, and the blocking layer comprises the compound represented by formula (3) or (4-2).

14. An electronic equipment, comprising the organic electroluminescence device according to claim 8 .

15. A compound represented by formula (2):

wherein:

R 1 and R 2 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a group represented by —Si(R 101 )(R 102 )(R 103 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; and each of R 11 to R 24 independently represents a hydrogen atom, a fluorine atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a group represented by —Si(R 101 )(R 102 )(R 103 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted furyl group, thienyl group, benzofuranyl group, isobenzofuranyl group, benzothiophenyl group, isobenzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, or xanthenyl group, or a group represented by —Z—R a ;

each Z represents a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted dibenzofuranylene group or a substituted or unsubstituted dibenzothiophenylene group, or a divalent linking group in which 2 to 4 groups selected from the above groups are linked together;

when more than one Z occurs, groups Z may be the same or different;

R a represents a group represented by a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted furyl group, thienyl group, benzofuranyl group, isobenzofuranyl group, benzothiophenyl group, isobenzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, or xanthenyl group;

when more than one R a occurs, groups R a may be the same or different;

R 101 to R 103 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms; and

when R 1 to R 2 , R 11 to R 24 , and R 101 to R 103 of formula (2) have a substituent, the substituent represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 6 ring carbon atoms, an aryl group having 6 to 24 ring carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a halogen atom, a cyano group, or a nitro group, and the substituent is not substituted with further substituent and adjacent groups of substituents is not bonded to each other to form a ring structure;

provided that one to four selected from R 11 to R 24 each represents a group represented by —Z—R a .

16. The compound according to claim 15 , wherein the group represented by —Z—R a is represented by any of formulae (b) to (c):

—Z 2 —HAr  (b)

—Z 3 —Ar 4   (c)

wherein:

Z 2 and Z 3 are the same as Z defined above, or a divalent linking group in which 2 to 4 groups selected from the above groups are linked together;

HAr represents a substituted or unsubstituted furyl group, thienyl group, benzofuranyl group, isobenzofuranyl group, benzothiophenyl group, isobenzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, or xanthenyl group; and

Ar 4 represents a substituted or unsubstituted aryl group having 14 to 30 ring carbon atoms.

17. The compound according to claim 16 , wherein only one or two selected from R 11 to R 24 in formula (2) is each independently represented by any of formulae (b) to (c).

18. The compound according to claim 16 , wherein only one or two selected from R 11 to R 24 in formula (2) is represented by formula (b).

19. The compound according to claim 16 , wherein only one or two selected from R 11 to R 24 in formula (2) is represented by formula (c).

20. The compound according to claim 16 , wherein R 23 in formula (2) is represented by any of formulae (b) to (c).

21. A compound is represented by any of formulae (3) and (4-2):

wherein:

R 1 and R 2 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a group represented by —Si(R 101 )(R 102 )(R 103 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;

R 11 to R 18 , R 25 to R 27 , R 29 to R 33 , and R 35 to R 36 each independently represents a hydrogen atom, a fluorine atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a group represented by —Si(R 101 )(R 102 ) (R 103 ), a group represented by —N(R 104 )(R 105 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, or a group represented by —Z—R a ;

each Z represents a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the above groups are linked together;

when more than one Z occurs, groups Z may be the same or different;

R a represents a group represented by —N(R 104 )(R 105 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;

when more than one R a occurs, groups R a may be the same or different;

R 101 to R 105 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms;

the group represented by —Z—R a , and is represented by any of formulae (a) to (c):

Z 1 to Z 3 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the arylene group and the heteroarylene group are linked together;

L 1 and L 2 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the arylene group and the heteroarylene group are linked together;

Ar 2 and Ar 3 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;

HAr represents a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;

R 28 in formula (3) is represented by any of the formulae (a) to (c); and

Ar 4 represents a substituted or unsubstituted aryl group having 14 to 30 ring carbon atoms,

provided that one to three selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 of formula (3) each represent a group represented by —Z—R a .

22. The compound according to claim 21 , wherein the group represented by —Z—R a is represented by formula (b), and —HAr in formula (b) is a group selected from the following groups:

wherein each R c independently represents a fluorine atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 30 carbon atoms which has an aryl group having 6 to 30 ring carbon atoms, an amino group, a mono- or dialkylamino group having an alkyl group having 1 to 20 carbon atoms, a mono- or diarylamino group having an aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a mono-, di- or tri-substituted silyl group having a substituent selected from an alkyl group having 1 to 20 carbon atoms and an aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, a halogen atom, a cyano group, or a nitro group;

when more than one R c occurs in each group, groups R c may be the same or different;

R d represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; and

each p1 independently represents an integer of 0 to 4, each p2 independently represents an integer of 0 to 3, p3 represents an integer of 0 to 2, p4 represents an integer of 0 to 7, and p5 represents an integer of 0 to 5.

23. The compound according to claim 21 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are each independently represented by any of formulae (a) to (c).

24. The compound according to claim 21 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are represented by formula (a).

25. The compound according to claim 21 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are represented by formula (b).

26. The compound according to claim 21 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are represented by formula (c).

27. The compound according to claim 21 , wherein the compound is represented by formulae (3-1):

wherein R 1 , R 2 , R 11 to R 18 , R 25 to R 27 , R 29 to R 30 , R 35 , R 36 , Z 1 , L 1 , L 2 , Ar 2 , and Ar 3 are as defined above.

28. The compound according to claim 21 , wherein the compound is represented by formulae (3-2):

wherein R 1 , R 2 , R 11 , R 12 , R 14 to R 18 , R 25 to R 27 , R 29 to R 30 Z 1 , L 1 , L 2 , Ar 2 , and Ar 3 are as defined above, and more than one Z 1 , L 1 , L 2 , Ar 2 and Ar 3 may be the same or different, respectively.

29. The compound according to claim 21 , wherein Z 1 is a single bond.

30. The compound according to claim 21 , wherein Ar 2 and Ar 3 each represent a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

31. The compound according to claim 21 , wherein L 1 and L 2 are both single bonds, and Ar 2 and Ar 3 each independently represent a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group.

32. A material for organic electroluminescence devices, the material comprising the compound according to claim 21 .

33. An organic electroluminescence device, comprising:

an organic thin film layer between a cathode and an anode,

wherein:

the organic thin film layer comprises one or more layers comprising a light emitting layer; and

at least one layer of the organic thin film layer comprises the compound represented by formula (3) or (4-2) according to claim 21 .

34. The organic electroluminescence device according to claim 33 , wherein the light emitting layer comprises the compound represented by formula (3) or (4-2).

35. The organic electroluminescence device according to claim 33 , wherein the at least one layer of the organic thin film layer comprises the compound represented by formula (3) or (4-2) and an anthracene derivative represented by formula (5):

wherein Ar 11 and Ar 12 each independently represent a substituted or unsubstituted monocyclic group having 5 to 50 ring atoms or a substituted or unsubstituted fused ring group having 8 to 50 ring atoms; and

R 101 to R 108 are each independently selected from a hydrogen atom, a substituted or unsubstituted monocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted fused ring group having 8 to 50 ring atoms, a group comprising a combination of the monocyclic group and the fused ring group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, and a cyano group.

36. The organic electroluminescence device according to claim 33 , wherein the organic thin film layer comprises an electron transporting layer, and the electron transporting layer comprises said compound represented by formula (3) or (4-2).

37. The organic electroluminescence device according to claim 33 , wherein the organic thin film layer comprises a hole transporting layer comprising the compound represented by formula (3) or (4-2).

38. The organic electroluminescence device according to claim 33 , wherein the organic thin film layer comprises an electron transporting layer and a blocking layer between the electron transporting layer and the light emitting layer, and the blocking layer comprises the compound represented by formula (3) or (4-2).

39. An electronic equipment, comprising the organic electroluminescence device according to claim 33 .

40. A compound is represented by any of formulae (3-1) and (4-2):

wherein:

R 1 and R 2 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a group represented by —Si(R 101 )(R 102 )(R 103 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; and

R 11 to R 18 , R 25 to R 27 , R 29 to R 33 , and R 35 to R 36 each independently represents a hydrogen atom, a fluorine atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a group represented by —Si(R 101 )(R 102 )(R 103 ), a group represented by —N(R 104 )(R 105 ), a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, or a group represented by —Z—R a ;

R 101 to R 105 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms;

the group represented by —Z—R a , and is represented by any of formulae (a) to (c):

Z 1 to Z 3 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the arylene group and the heteroarylene group are linked together;

L 1 and L 2 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the arylene group and the heteroarylene group are linked together;

Ar 2 and Ar 3 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;

HAr represents a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; and

Ar 4 represents a substituted or unsubstituted aryl group having 14 to 30 ring carbon atoms,

provided that one to three selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 of formula (3-1), and one or two selected from R 11 to R 18 , R 31 to R 33 , and R 35 to R 36 of formula (4-2) each represent a group represented by —Z—R a .

41. The compound according to claim 40 , wherein:

the group represented by —Z—R a is represented by formula (b):

—Z 2 —HAr  (b);

Z 2 independently represents a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a divalent linking group in which 2 to 4 groups selected from the arylene group and the heteroarylene group are linked together;

—HAr in formula (b) is a group selected from the following groups:

each R c independently represents a fluorine atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 30 carbon atoms which has an aryl group having 6 to 30 ring carbon atoms, an amino group, a mono- or dialkylamino group having an alkyl group having 1 to 20 carbon atoms, a mono- or diarylamino group having an aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a mono-, di- or tri-substituted silyl group having a substituent selected from an alkyl group having 1 to 20 carbon atoms and an aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, a halogen atom, a cyano group, or a nitro group;

when more than one R c occurs in each group, groups R c may be the same or different;

R d represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; and

each p1 independently represents an integer of 0 to 4, each p2 independently represents an integer of 0 to 3, p 3 represents an integer of 0 to 2, p4 represents an integer of 0 to 7, and p5 represents an integer of 0 to 5.

42. The compound according to claim 40 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3-1), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are each independently represented by any of the formulae (a) to (c).

43. The compound according to claim 40 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3-1), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are represented by the formula (a).

44. The compound according to claim 40 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3-1), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are represented by the formula (b).

45. The compound according to claim 40 , wherein only one or two selected from R 11 to R 18 , R 25 to R 27 , and R 29 to R 30 in formula (3-1), and only two selected from R 11 to R 12 and R 14 to R 18 and R 31 to R 33 and R 35 to R 36 in formula (4-2) are represented by the formula (c).

46. The compound according to claim 40 , wherein the compound is represented by formula (3-2):

wherein R 1 , R 2 , R 11 , R 12 , R 14 to R 18 , R 25 to R 27 , R 29 to R 30 Z 1 , L 1 , L 2 , Ar 2 , and Ar 3 are as defined above, and more than one Z 1 , L 1 , L 2 , Ar 2 and Ar 3 may be the same or different, respectively.

47. The compound according to claim 40 , wherein Z 1 is a single bond.

48. The compound according to claim 40 , wherein Ar 1 and Ar 3 each represent a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

49. The compound according to claim 40 , wherein L 1 and L 2 are both single bonds, and Ar 2 and Ar 3 each independently represent a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group.

50. A material for organic electroluminescence devices, the material comprising the compound according to claim 40 .

51. An organic electroluminescence device, comprising:

an organic thin film layer between a cathode and an anode,

wherein:

the organic thin film layer comprises one or more layers comprising a light emitting layer; and

at least one layer of the organic thin film layer comprises the compound represented by formula (3-1) or (4-2) according to claim 40 .

52. The organic electroluminescence device according to claim 51 , wherein the light emitting layer comprises the compound represented by formula (3-1) or (4-2).

53. The organic electroluminescence device according to claim 51 , wherein the at least one layer of the organic thin film layer comprises the compound represented by formula (3-1) or (4-2) and an anthracene derivative represented by formula (5):

wherein Ar 11 and Ar 12 each independently represent a substituted or unsubstituted monocyclic group having 5 to 50 ring atoms or a substituted or unsubstituted fused ring group having 8 to 50 ring atoms; and

R 101 to R 108 are each independently selected from a hydrogen atom, a substituted or unsubstituted monocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted fused ring group having 8 to 50 ring atoms, a group comprising a combination of the monocyclic group and the fused ring group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, and a cyano group.

54. The organic electroluminescence device according to claim 51 , wherein the organic thin film layer comprises an electron transporting layer, and the electron transporting layer comprises said compound represented by formula (3-1) or (4-2).

55. The organic electroluminescence device according to claim 51 , wherein the organic thin film layer comprises a hole transporting layer comprising the compound represented by formula (3-1) or (4-2).

56. The organic electroluminescence device according to claim 51 , wherein the organic thin film layer comprises an electron transporting layer and a blocking layer between the electron transporting layer and the light emitting layer, and the blocking layer comprises the compound represented by formula (3-1) or (4-2).

57. An electronic equipment, comprising the organic electroluminescence device according to claim 51 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2016
From: ITO, HIROKATSU; KAWAMURA, MASAHIRO; MIZUKI, YUMIKO; HAKETA, TASUKU; HAYAMA, TOMOHARU
To: IDEMITSU KOSAN CO., LTD.
Reel/Frame 037653/0202 →
Priority Claims (1)
JP 2013-196191 · Sep 20, 2013 · national
Continuity (1)
Related Publication 20160181543A1 · Jun 23, 2016