US2019259948A1PendingUtilityA1
Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic apparatus
Est. expiryFeb 28, 2034(~7.6 yrs left)· nominal 20-yr term from priority
C09K 2211/1011C09K 2211/1088C09K 11/06C09K 2211/1092C09K 2211/1007C07D 333/76C07D 307/91H01L 51/5012H01L 51/0071H01L 51/0074H01L 51/006H01L 51/0061H01L 51/0073C07D 409/12H10K 85/624H10K 85/615C07C 211/61H10K 85/6576H10K 85/6574H10K 85/636H10K 85/633H10K 50/11H10K 50/15H10K 50/156H10K 85/6572H10K 85/657H10K 85/654
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Claims
Abstract
A compound represented by formula (1): wherein R 1 , R 2 , Ar 1 , and Ar 2 are as defined in the description, realizes an electroluminescence device which is capable of driving at a low voltage and has long lifetime and high efficiency.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A compound represented by formula (1):
wherein the group represented by formula (4):
is represented by formula (4a) or (4b):
each of R 1 and R 2 is an unsubstituted phenyl group;
Ar 1 represents a group represented by formula (2);
Ar 2 represents a group selected from a group represented by formula (3a) and a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms selected from the group consisting of a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a naphthylphenyl group, a 9,9-dimethylfluorene-2-yl group, a 9,9-diphenylfluorene-2-yl group, a 9,9-bis(p-methylphenyl)fluorene-2-yl group, a 7-phenyl-9,9-diphenylfluorene-2-yl group, and a p-(9,9-diphenylfluorene-2-yl)phenyl group:
in formula (2):
X represents an oxygen atom or a sulfur atom;
L 1 represents an unsubstituted phenylene group;
y represents 0 or 1, and when y is 0, (L 1 ) 0 represents a single bond;
R 3 represents an unsubstituted phenyl group or an unsubstituted naphthyl group; and
m represents an integer of 0 to 4, when m is an integer of 2 to 4, two to four groups R 3 may be the same or different and are not bonded to each other, thereby failing to form a ring, and when m is 0, (R 3 ) 0 represents a hydrogen atom;
in formula (3a):
R 5 and R 6 each independently represent a hydrogen atom, an unsubstituted methyl group, or an unsubstituted aryl group having 10 to 50 ring carbon atoms;
L 2 represents an unsubstituted phenylene group;
z represents 0 or 1, and when z is 0, (L 2 ) 0 represents a single bond;
R 4 represents an unsubstituted phenyl group or an unsubstituted naphthyl group;
n represents an integer of 0 to 4, when n is an integer of 2 to 4, two to four groups R 4 may be the same or different and are not bonded to each other, thereby failing to form a ring, and when n is 0, (R 4 ) 0 represents a hydrogen atom.
2 . The compound according to claim 1 , wherein Ar 1 is represented by formula (2a) or (2b):
wherein L 1 , y, X, R 3 , and m are as defined in claim 1 .
3 . The compound according to claim 1 , wherein Ar 1 is represented by formula (2a′) or (2b′):
wherein L 1 , X, R 3 , and m are as defined in claim 1 .
4 . The compound according to claim 1 , wherein Ar 1 is represented by formula (2a″) or (2b″):
wherein L 1 and X are as defined in claim 1 .
5 . The compound according to claim 1 , wherein Ar 1 is represented by formula (2a″-1) or (2b″-1):
wherein X is as defined in claim 1 .
6 . The compound according to claim 1 , wherein Ar 1 is represented by any of the following groups:
wherein X is as defined in claim 1 .
7 . The compound according to claim 1 , wherein Ar 2 is represented by formula (3a′):
wherein R 4 , R 5 , R 6 , and n are as defined in claim 1 .
8 . The compound according to claim 1 , wherein Ar 2 is represented by formula (3a″):
wherein R 5 and R 6 are as defined in claim 1 .
9 . The compound according to claim 1 , wherein formula (1) is represented by formula (1a) or (1b):
wherein R 1 , R 2 , Ar 1 and Ar 2 are as defined in formula (1).
10 . The compound according to claim 1 , wherein formula (1) is represented by any of formulae (1a-1), (1a-2), (1b-1), and (1b-2):
wherein R 1 , R 2 , L 1 , X, R 3 , Ar 2 , and m are as defined in formula (1).
11 . The compound according to claim 1 , wherein formula (1) is represented by any of formulae (1a-1′), (1a-2′), (1b-1′), and (1b-2′):
wherein R 1 , R 2 , L 1 , X, and Ar 2 are as defined in formula (1).
12 . The compound according to claim 1 , wherein:
Ar 1 is a group represented by formula (2a) or (2b):
wherein L 1 , y, X, R 3 , and m are as defined above; and
Ar 2 is a group represented by formula (3a) or the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms:
wherein L 2 , z, R 4 , R 5 , R 6 , and n are as defined in claim 1 .
13 . The compound according to claim 1 , wherein:
Ar 1 is a group represented by formula (2a′) or (2b′):
wherein L 1 , X, R 3 , and m are as defined above; and
Ar 2 is a group represented by formula (3a′) or the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms:
wherein R 4 , R 5 , R 6 , and n are as defined in claim 1 .
14 . The compound according to claim 1 , wherein:
Ar 1 is a group represented by formula (2a″) or (2b″):
wherein L 1 and X are as defined above; and
Ar 2 is a group represented by formula (3a″) or the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms:
wherein R 5 and R 6 are as defined in claim 1 .
15 . The compound according to claim 1 , wherein:
Ar 1 is a group represented by formula (2a″-1) or (2b″-1):
wherein X is as defined above; and
Ar 2 is a group represented by formula (3a″) or the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms:
wherein R 5 and R 6 are as defined above.
16 . The compound according to claim 1 , wherein:
Ar 1 is a group represented by any of the following groups:
wherein X is as defined above; and
Ar 2 is a group represented by formula (3a″) or the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms:
wherein R 5 and R 6 are as defined in claim 1 .
17 . The compound according to claim 1 , wherein formula (4a) is represented by any of
18 . The compound according to claim 1 , wherein formula (4b) is represented by any of
19 . The compound according to claim 1 , wherein the compound is any one of the following compounds:
20 . A material for organic electroluminescence devices which comprises the compound according to claim 1 .
21 . An organic electroluminescence device which comprises an anode, a cathode, and at least one organic thin film layer between the anode and the cathode, wherein the at least one organic thin film layer comprises a light emitting layer and at least one layer of the at least one organic thin film layer comprises the compound according to claim 1 .
22 . The organic electroluminescence device according to claim 21 , wherein the organic electroluminescence device comprises an organic thin film layer between the anode and the light emitting layer and the organic thin film layer comprises the compound.
23 . An electronic equipment which comprises the organic electroluminescence device according to claim 21 .Join the waitlist — get patent alerts
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