IP Library › Granted Patent US 12,581,849
Granted Patent B2
US 12,581,849 · App. 17/642,666 · Granted Mar 17, 2026

Organic electroluminescence element and electronic apparatus

Inventors: Satomi Tasaki (Tokyo, JP); Kazuki Nishimura (Tokyo, JP); Yuki Nakano (Tokyo, JP)
Assignee: IDEMITSU KOSAN CO., LTD.
H10K85/40H10K85/622H10K85/631H10K85/654H10K85/6572H10K85/6574H10K85/6576H10K50/125
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Quick Facts
Patent No.
US 12,581,849
App. No.
17/642,666
Granted
Mar 17, 2026
Kind
B2
Abstract

An organic electroluminescence device includes: an anode; a cathode; a first emitting layer; and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains, as a first host material, a first compound that has at least one group represented by a formula (11A) below and that is represented by a formula (1) below, the second emitting layer contains, as a second host material, a second compound represented by a formula (2) below, and the first emitting layer and the second emitting layer are in direct contact with each other.

Claims (169)

1 . An organic electroluminescence device comprising:

an anode;

a cathode;

a first emitting layer provided between the anode and the cathode; and

a second emitting layer provided between the first emitting layer and the cathode, wherein

the first emitting layer comprises, as a first host material, a first compound that comprises at least one group represented by a formula (11A) below and that is represented by a formula (1) below,

the second emitting layer comprises, as a second host material, a second compound, and

the first emitting layer and the second emitting layer are in direct contact with each other,

where in the formula (1):

R 101 to R 110 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or a group represented by the formula (11A);

at least one of R 101 to R 110 is a group represented by the formula (11A);

when a plurality of groups represented by the formula (11A) are present, the plurality of groups represented by the formula (11A) are mutually the same or different;

X A is an oxygen atom or a sulfur atom;

at least one combination of adjacent two or more of R 132 to R 138 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded;

R 132 to R 138 not forming the substituted or unsubstituted monocyclic ring and not forming the substituted or unsubstituted fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms; and

* in the formula (11A) represents a bonding position to a pyrene ring in the formula (1),

in the first compound represented by the formula (1), R 901 , R 902 , R 903 , R 904 , R 905 , R 801 and R 802 are each independently a hydrogen atom, 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 aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

when a plurality of R 901 are present, the plurality of R 901 are mutually the same or different;

when a plurality of R 902 are present, the plurality of R 902 are mutually the same or different;

when a plurality of R 903 are present, the plurality of R 903 are mutually the same or different;

when a plurality of R 904 are present, the plurality of R 904 are mutually the same or different;

when a plurality of R 905 are present, the plurality of R 915 are mutually the same or different;

when a plurality of R 801 are present, the plurality of R 801 are mutually the same or different; and

when a plurality of R 802 are present, the plurality of R 802 are mutually the same or different.

2 . The organic electroluminescence device according to claim 1 , wherein

the first compound comprises one group represented by the formula (11A).

3 . The organic electroluminescence device according to claim 1 , wherein

R 101 , R 103 , R 106 , or R 108 is a group represented by the formula (11A).

4 . An organic electroluminescence device comprising:

an anode;

a cathode;

a first emitting layer provided between the anode and the cathode; and

a second emitting layer provided between the first emitting layer and the cathode, wherein

the first emitting layer comprises, as a first host material, a first compound that comprises at least one group represented by a formula (11B) below and that is represented by a formula (1) below,

the second emitting layer comprises, as a second host material, a second compound and

the first emitting layer and the second emitting layer are in direct contact with each other,

where in the formula (1):

R 101 to R 110 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or a group represented by the formula (11B);

at least one of R 101 to R 110 is a group represented by the formula (11B);

when a plurality of groups represented by the formula (11B) are present, the plurality of groups represented by the formula (11B) are mutually the same or different;

X A is an oxygen atom or a sulfur atom;

at least one combination of adjacent two or more of R 131 , R 132 , R 134 , and R 135 to R 138 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded;

R 131 , R 132 , R 134 , and R 135 to R 138 not forming the substituted or unsubstituted monocyclic ring and not forming the substituted or unsubstituted fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms; and

* in the formula (11B) represents a bonding position to a pyrene ring in the formula (1),

in the first compound represented by the formula (1), R 901 , R 902 , R 903 , R 904 , R 905 , R 801 and R 802 are each independently a hydrogen atom, 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 aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

when a plurality of R 901 are present, the plurality of R 901 are mutually the same or different;

when a plurality of R 902 are present, the plurality of R 902 are mutually the same or different;

when a plurality of R 903 are present, the plurality of R 903 are mutually the same or different;

when a plurality of R 904 are present, the plurality of R 904 are mutually the same or different;

when a plurality of R 905 are present, the plurality of R 905 are mutually the same or different;

when a plurality of R 801 are present, the plurality of R 801 are mutually the same or different; and

when a plurality of R 802 are present, the plurality of R 802 are mutually the same or different, wherein:

a combination of R 131 and R 132 or a combination of R 131 and R 138 are mutually bonded to form a substituted or unsubstituted monocyclic ring or mutually bonded to form a substituted or unsubstituted fused ring, and

any combination of adjacent two or more of R 135 to R 138 are not mutually bonded.

5 . The organic electroluminescence device according to claim 4 , wherein

the first compound comprises one group represented by the formula (11B).

6 . The organic electroluminescence device according to claim 4 , wherein

R 101 , R 103 , R 106 , or R 108 is a group represented by the formula (11B).

7 . An organic electroluminescence device comprising:

an anode;

a cathode;

a first emitting layer provided between the anode and the cathode;

a second emitting layer provided between the first emitting layer and the cathode, wherein

the first emitting layer comprises, as a first host material, a first compound that comprises at least one group represented by a formula (11E) below and that is represented by a formula (1) below,

the second emitting layer comprises, as a second host material, a second compound and

the first emitting layer and the second emitting layer are in direct contact with each other,

where in the formula (1):

R 101 to R 110 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or a group represented by the formula (11E);

at least one of R 101 to R 110 is a group represented by the formula (11E);

when a plurality of groups represented by the formula (11E) are present, the plurality of groups represented by the formula (11E) are mutually the same or different;

a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring is fused with a six-membered ring Z in the formula (11E) at at least one position of a position a, a position b, or a position c;

a carbon atom in the monocyclic ring or the fused ring fused at the at least one position of the position a, the position b, or the position c is bonded to a pyrene ring represented by the formula (1);

X A is an oxygen atom or a sulfur atom;

p is 0, 1, or 2;

when p is 2, two R 130 are mutually the same or different;

at least one combination of adjacent two or more of R 131 to R 134 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded; and

R 130 , and R 131 to R 134 not forming the substituted or unsubstituted monocyclic ring and not forming the substituted or unsubstituted fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

in the first compound represented by the formula (1), R 901 , R 902 , R 903 , R 904 , R 905 , R 801 and R 802 are each independently a hydrogen atom, 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 aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

when a plurality of R 901 are present, the plurality of R 901 are mutually the same or different;

when a plurality of R 902 are present, the plurality of R 902 are mutually the same or different;

when a plurality of R 903 are present, the plurality of R 903 are mutually the same or different;

when a plurality of R 904 are present, the plurality of R 904 are mutually the same or different;

when a plurality of R 905 are present, the plurality of R 905 are mutually the same or different;

when a plurality of R 801 are present, the plurality of R 801 are mutually the same or different; and

when a plurality of R 802 are present, the plurality of R 802 are mutually the same or different.

8 . The organic electroluminescence device according to claim 7 , wherein

the first compound comprises one group represented by the formula (11E).

9 . The organic electroluminescence device according to claim 7 , wherein

R 101 , R 103 , R 106 , or R 108 is a group represented by the formula (11E).

10 . The organic electroluminescence device according to claim 7 , wherein

the group represented by the formula (11E) is a group represented by a formula (11E-1), (11E-2), or (11E-3) below,

where in the formulae (11E-1), (11E-2), and (11E-3):

a ring a1, a ring b1, and a ring c1 are each independently a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring;

a carbon atom in each of the rings a1, b1, and c1 is bonded to a pyrene ring represented by the formula (1);

X A is an oxygen atom or a sulfur atom;

at least one combination of adjacent two or more of R 131 to R 138 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded;

R 131 to R 138 not forming the substituted or unsubstituted monocyclic ring and not forming the substituted or unsubstituted fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms; and

in the formulae (11E-1), (11E-2) and (11E-3) represents a bonding position to a pyrene ring in the formula (1).

11 . The organic electroluminescence device according to claim 7 , wherein

the group represented by the formula (11E) is a group represented by a formula (11E-4), (11E-5), or (11E-6) below,

where in the formulae (11E-4), (11E-5), and (11E-6):

X A is an oxygen atom or a sulfur atom;

at least one combination of adjacent two or more of R 131 to R 138 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded;

R 140 , and R 131 to R 138 not forming the substituted or unsubstituted monocyclic ring and not forming the substituted or unsubstituted fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

q is 3, and three R 140 are mutually the same or different; and

* in the formulae (11E-4), (11E-5) and (11E-6) represents a bonding position to a pyrene ring in the formula (1).

12 . The organic electroluminescence device according to claim 1 , wherein

R 101 to R 110 not being the group represented by the formula (11A) are each independently a hydrogen atom, 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 aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

13 . The organic electroluminescence device according to claim 1 , wherein

R 101 to R 110 not being the group represented by the formula (11A) are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms.

14 . The organic electroluminescence device according to claim 1 , wherein

R 101 to R 110 not being the group represented by the formula (11A) are each a hydrogen atom.

15 . The organic electroluminescence device according to claim 1 , wherein

in the first compound and the second compound, all groups described as “substituted or unsubstituted” groups are “unsubstituted” groups.

16 . The organic electroluminescence device according to claim 1 , wherein

the second compound is represented by a formula (2) below,

where in the formula (2):

R 201 to R 208 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a group represented by —N(R 906 )(R 907 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

L 201 and L 202 are each independently a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms; and

Ar 201 and Ar 202 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

in the second compound represented by the formula (2), R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 801 and R 802 are each independently a hydrogen atom, 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 aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

when a plurality of R 901 are present, the plurality of R 901 are mutually the same or different;

when a plurality of R 902 are present, the plurality of R 902 are mutually the same or different;

when a plurality of R 903 are present, the plurality of R 903 are mutually the same or different;

when a plurality of R 904 are present, the plurality of R 904 are mutually the same or different;

when a plurality of R 905 are present, the plurality of R 905 are mutually the same or different;

when a plurality of R 906 are present, the plurality of R 906 are mutually the same or different;

when a plurality of R 907 are present, the plurality of R 907 are mutually the same or different;

when a plurality of R 801 are present, the plurality of R 801 are mutually the same or different; and

when a plurality of R 802 are present, the plurality of R 802 are mutually the same or different.

17 . The organic electroluminescence device according to claim 4 , wherein

the second compound is represented by a formula (2) below,

where in the formula (2):

R 201 to R 208 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a group represented by —N(R 906 )(R 907 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

L 201 and L 202 are each independently a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms; and

Ar 201 and Ar 202 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

in the second compound represented by the formula (2), R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 801 and R 802 are each independently a hydrogen atom, 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 aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

when a plurality of R 901 are present, the plurality of R 901 are mutually the same or different;

when a plurality of R 902 are present, the plurality of R 902 are mutually the same or different;

when a plurality of R 903 are present, the plurality of R 903 are mutually the same or different;

when a plurality of R 904 are present, the plurality of R 904 are mutually the same or different;

when a plurality of R 905 are present, the plurality of R 905 are mutually the same or different;

when a plurality of R 906 are present, the plurality of R 906 are mutually the same or different;

when a plurality of R 907 are present, the plurality of R 907 are mutually the same or different;

when a plurality of R 801 are present, the plurality of R 801 are mutually the same or different; and

when a plurality of R 802 are present, the plurality of R 802 are mutually the same or different.

18 . The organic electroluminescence device according to claim 7 , wherein

the second compound is represented by a formula (2) below,

where in the formula (2):

R 201 to R 208 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a group represented by —N(R 906 )(R 907 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

L 201 and L 202 are each independently a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms; and

Ar 201 and Ar 202 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

in the second compound represented by the formula (2), R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 801 and R 802 are each independently a hydrogen atom, 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 aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;

when a plurality of R 901 are present, the plurality of R 901 are mutually the same or different;

when a plurality of R 902 are present, the plurality of R 902 are mutually the same or different;

when a plurality of R 903 are present, the plurality of R 903 are mutually the same or different;

when a plurality of R 904 are present, the plurality of R 904 are mutually the same or different;

when a plurality of R 905 are present, the plurality of R 905 are mutually the same or different;

when a plurality of R 906 are present, the plurality of R 906 are mutually the same or different;

when a plurality of R 907 are present, the plurality of R 907 are mutually the same or different;

when a plurality of R 801 are present, the plurality of R 801 are mutually the same or different; and

when a plurality of R 802 are present, the plurality of R 802 are mutually the same or different.

19 . The organic electroluminescence device according to claim 16 , wherein

R 201 to R 208 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R 901 )(R 902 )(R 903 ), a group represented by —O—(R 904 ), a group represented by —S—(R 905 ), a group represented by —N(R 906 )(R 907 ), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R 801 , a group represented by —COOR 802 , a halogen atom, a cyano group, or a nitro group;

L 201 and L 202 are each independently a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms; and

Ar 201 and Ar 202 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

20 . The organic electroluminescence device according to claim 16 , wherein

L 201 and L 202 are each independently a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms; and

Ar 201 and Ar 202 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 11, 2022
From: TASAKI, SATOMI; NISHIMURA, KAZUKI; NAKANO, YUKI
To: IDEMITSU KOSAN CO.,LTD.
Reel/Frame 059246/0914 →
Priority Claims (3)
JP 2019-167636 · Sep 13, 2019 · national
JP 2019-213374 · Nov 26, 2019 · national
JP 2019-239907 · Dec 27, 2019 · national
Continuity (1)
Related Publication 20220376191A1 · Nov 24, 2022
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