IP Library › Granted Patent US 12,486,450
Granted Patent B2
US 12,486,450 · App. 17/282,642 · Granted Dec 2, 2025

Organic electroluminescence device and electronic apparatus provided with the same

Inventors: Yuki Nakano (Sodegaura, JP); Taro Yamaki (Sodegaura, JP); Satomi Tasaki (Sodegaura, JP); Tomoki Kato (Sodegaura, JP); Keita Seda (Sodegaura, JP); Ryota Takahashi (Sodegaura, JP)
Assignee: IDEMITSU KOSAN CO., LTD.
C09K11/06C07C15/28H10K85/40H10K85/622H10K85/623H10K85/626H10K85/633H10K85/636H10K85/6572H10K85/6574H10K85/6576H10K85/658C07B2200/05C07C2603/24C09K2211/1011H10K50/11H10K50/15H10K50/16H10K2101/10H10K2101/40
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Quick Facts
Patent No.
US 12,486,450
App. No.
17/282,642
Granted
Dec 2, 2025
Kind
B2
Abstract

An organic electroluminescence device induing a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains a compound represented by the following formula (1) and one or more compounds selected from the group consisting of a compound represented by formula (11), a compound represented by formula (21), a compound represented by formula (31), a compound represented by formula (41), a compound represented by formula (51), a compound represented by formula (61), a compound represented by formula (71) and a compound represented by formula (81). In the formula (1), at east one of R 1 to R 8 is a deuterium atom.

Claims (320)

1 . An organic electroluminescence device comprising:

a cathode,

an anode, and

an emitting layer disposed between the cathode and the anode, wherein

the emitting layer comprises a compound represented by the following formula (1) and one or more compounds selected from the group consisting of a compound represented by formula (11), a compound represented by formula (21), a compound represented by formula (31), a compound represented by formula (41), a compound represented by formula (51), a compound represented by formula (61), a compound represented by formula (71) and a compound represented by formula (81):

wherein in the formula (1), each of R 1 to R 8 is a deuterium atom,

L 1 and L 2 are independently

a single bond,

a substituted or unsubstituted phenylene group,

a substituted or unsubstituted naphthylene group,

a substituted or unsubstituted biphenylene group,

a substituted or unsubstituted terphenylene group,

a substituted or unsubstituted anthrylene group, or

a substituted or unsubstituted phenanthrylene group;

Ar 1 and Ar 2 are independently

a substituted or unsubstituted phenyl group,

a substituted or unsubstituted naphthyl group,

a substituted or unsubstituted biphenyl group,

a substituted or unsubstituted terphenyl group,

a substituted or unsubstituted anthryl group, or

a substituted or unsubstituted phenanthryl group;

when L 1 , L 2 , Ar 1 and Ar 2 have a substituent, the substituent is an alkyl group having 1 to 50 carbon atoms,

an alkenyl group having 2 to 50 carbon atoms,

an alkynyl group having 2 to 50 carbon atoms,

a cycloalkyl group having 3 to 50 ring carbon atoms,

an alkylsilyl group having 1 to 50 carbon atoms,

a halogen atom, or

a cyano group;

wherein, in the formula (11),

one or more pairs of two or more adjacent groups of R 101 to R 110 are bonded with each other to form a substituted or unsubstituted, saturated or unsaturated ring, or do not form a substituted or unsubstituted, saturated or unsaturated ring;

at least one of R 101 to R 110 is a monovalent group represented by the formula (12);

R 101 to R 110 that do not form the substituted or unsubstituted, saturated or unsaturated ring and that are not a monovalent group represented by the following formula (12) are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

wherein, in the formula (12), Ar 101 and Ar 102 are independently

a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;

L 101 to L 103 are independently

a single bonded,

a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or

a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms;

wherein, in the formula (21),

Zs are independently CR a or N;

A1 ring and A2 ring are independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic ring having 5 to 50 ring atoms;

when a plurality of R a s exist, two or more adjacent groups of R a are bonded with each other to form a substituted or unsubstituted, saturated or unsaturated ring, or do not form a substituted or unsubstituted, saturated or unsaturated ring;

when a plurality of R b s exist, two or more adjacent groups of R b are bonded with each other to form a substituted or unsubstituted, saturated or unsaturated ring, or do not form a substituted or unsubstituted, saturated or unsaturated ring;

when a plurality of R c s exist, one or more pairs of two or more adjacent groups of R c are bonded with each other to form a substituted or unsubstituted, saturated or unsaturated ring, or do not form a substituted or unsubstituted, saturated or unsaturated ring;

n21 and n22 are independently an integer of 0 to 4;

R a to R c that do not form the substituted or unsubstituted, saturated or unsaturated ring are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

wherein, in the formula (31),

one or more pairs of two or more adjacent groups of R 301 to R 307 and R 311 to R 317 form a substituted or unsubstituted, saturated or unsaturated ring, or do not form a substituted or unsubstituted saturated or unsaturated ring;

R 301 to R 307 and R 311 to R 317 that do not form the substituted or unsubstituted, saturated or unsaturated ring are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 321 and R 322 are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

wherein, in the formula (41),

a ring, b ring and c ring are independently

a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted heterocyclic ring having 5 to 50 ring atoms;

R 401 and R 402 are independently bonded to the a ring, the b ring or the c ring to form a substituted or unsubstituted heterocyclic ring or do not form a substituted or unsubstituted heterocyclic ring;

R 401 and R 402 that do not form the substituted or unsubstituted heterocyclic ring are independently

a substituted or unsubstituted alkyl 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 substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;

wherein, in the formula (51),

r ring is a ring represented by the formula (52) or formula (53) which is fused to an adjacent ring at an arbitrary position;

q ring and s ring are independently a ring represented by the formula (54) which is fused to an adjacent ring at an arbitrary position;

p ring and t ring are independently a ring represented by the formula (55) or the formula (56) which is fused to an adjacent ring at an arbitrary position;

when a plurality of R 501 s exist, adjacent R 501 s are bonded with each other to form a substituted or unsubstituted, saturated or unsaturated ring, or do not form a substituted or unsubstituted, saturated or unsaturated ring;

X 501 is an oxygen atom, a sulfur atom, or NR 502 ;

R 501 and R 502 that do not form the substituted or unsubstituted saturated or unsaturated ring are

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

Ar 501 and Ar 502 are independently

a substituted or unsubstituted alkyl 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 substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;

L 501 is

a substituted or unsubstituted alkylene group having 1 to 50 carbon atoms,

a substituted or unsubstituted alkenylene group having 2 to 50 carbon atoms,

a substituted or unsubstituted alkynylene group having 2 to 50 carbon atoms,

a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms,

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;

m1 is an integer of 0 to 2, m2 is an integer of 0 to 4, m3s are independently an integer of 0 to 3, and m4s are independently an integer of 0 to 5; when a plurality of R 501 s exist, R 501 s may be the same or different;

wherein, in the formula (61),

at least one pair of R 601 and R 602 , R 602 and R 603 , and R 603 and R 604 are bonded with each other to form a divalent group represented by the formula (62);

at least one pair of R 605 and R 606 , R 606 and R 607 , and R 607 and R 608 are bonded with each other to form a divalent group represented by formula (63);

at least one of R 601 to R 604 that does not form the divalent group represented by the formula (62), and R 611 to R 614 is a monovalent group represented by the following formula (64);

at least one of R 605 to R 608 that do not form the divalent group represented by the formula (63), and R 621 to R 624 is a monovalent group represented by the following formula (64);

X 601 is an oxygen atom, a sulfur atom, or NR 609 ;

R 601 to R 608 that do not form the divalent group represented by the formulas (62) and (63) and that is not the monovalent group represented by the formula (64), R 611 to R 614 and R 621 to R 624 that are not the monovalent group represented by the formula (64), and R 609 are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

wherein, in the formula (64), Ar 601 and Ar 602 are independently

a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;

L 601 to L 603 are independently

a single bonded,

a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms,

a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, or

a divalent linking group formed by bonding 2 to 4 of a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, and a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms;

wherein, in the formula (71),

A 701 ring and A 702 ring are independently

a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted heterocyclic ring having 5 to 50 ring atoms;

One or more rings selected from the group consisting of A 701 ring and A 702 ring are bonded to the bond * of the structure represented by the following formula (72);

wherein, in the formula (72),

A 703 rings are independently

a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted heterocyclic ring having 5 to 50 ring atoms;

X 701 is NR 703 , C(R 704 )(R 705 ), Si(R 706 ) (R 707 ), Ge(R 708 ) (R 709 ), O, S or Se;

R 701 and R 702 are bonded with each other to form a substituted or unsubstituted, saturated or unsaturated ring or do not form a substituted or unsubstituted saturated or unsaturated ring;

R 701 and R 702 that do not form the substituted or unsubstituted, saturated or unsaturated ring, and R 703 to R 709 are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

wherein, in the formula (81),

A 801 ring is a ring represented by the formula (82) which is fused to an adjacent ring at an arbitrary position;

A 802 ring is a ring represented by the formula (83) which is fused to an adjacent ring at an arbitrary position;

two bonds * bond to A 803 ring at an arbitrary position;

X 801 and X 802 are independently C(R 803 )(R 804 ), Si(R 85 )(R 806 ), an oxygen atom, or a sulfur atom;

A 803 ring is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic ring having 5 to 50 ring atoms;

Ar 801 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;

R 801 to R 806 are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

m801 and m802 are independently an integer of 0 to 2; when m801 is 2, R 801 's may be the same as or different from each other, and when m802 is 2, R 802 's may be the same as or different from each other;

a801 is an integer of 0 to 2; when a801 is 0 or 1, the structure in the parentheses indicated by “3-a801” may be the same or different from each other; when a801 is 2, Ar 801 s may be the same or different from each other, wherein

the emitting layer comprises

the compound represented by the formula (1), and

a non-deuterated compound having the structure same as the compound represented by the formula (1) except for containing only protium atoms as hydrogen atoms, and

a content of the compound represented by the formula (1) is from 30 mass % to 99 mass % based on a combined amount of the compound represented by the formula (1) and the non-deuterated compound.

2 . The organic electroluminescence device according to claim 1 , wherein in the formula (1), at least one hydrogen atom possessed in one or more selected from the group consisting of L 1 and L 2 is a deuterium atom.

3 . The organic electroluminescence device according to claim 1 , wherein in the formula (1), L 1 and L 2 are independently a single bond, a substituted or unsubstituted phenylene group, or a substituted or unsubstituted naphthylene group.

4 . The organic electroluminescence device according to claim 1 , wherein in the formula (1), at least one hydrogen atom possessed in one or more selected from the group consisting of Ar 1 and Ar 2 is a deuterium atom.

5 . The organic electroluminescence device according to claim 1 , wherein in the formula (1), Ar 1 and Ar 2 are independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthryl group.

6 . The organic electroluminescence device according to claim 1 , wherein in the formula (11), two of R 101 to R 110 are the groups represented by the formula (12).

7 . The organic electroluminescence device according to claim 1 , wherein the compound represented by the formula (11) is a compound represented by the following formula (13):

wherein in the formula (13), R 111 to R 118 are the same as R 101 to R 110 in the formula (11) that are not a monovalent group represented by the formula (12); and Ar 101 , Ar 102 , L 101 , L 102 and L 103 are as defined in the formula (12).

8 . The organic electroluminescence device according to claim 7 , wherein the compound represented by the formula (13) is a compound represented by the following formula (14):

wherein in the formula (14), R 111 to R 118 are as defined in the formula (13), and Ar 101 , Ar 102 , L 102 and L 103 are as defined in the formula (12).

9 . The organic electroluminescence device according to claim 7 , wherein the compound represented by the formula (13) is a compound represented by the following formula (15):

wherein in the formula (15), R 111 to R 118 are as defined in the formula (13), and Ar 101 and Ar 102 are as defined in the formula (12).

10 . The organic electroluminescence device according to claim 7 , wherein the compound represented by the formula (13) is a compound represented by the following formula (17):

wherein in the formula (17), R 111 to R 118 are as defined in the formula (13);

one or more sets of adjacent two or more of R 121 to R 127 are form a substituted or unsubstituted, saturated or unsaturated ring by bonding with each other, or do not form a substituted or unsubstituted, saturated or unsaturated ring;

R 121 to R 127 that do not form the substituted or unsubstituted, saturated or unsaturated ring are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms;

R 901 to R 907 are as defined in the formula (1);

R 131 to R 135 are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms; and

R 901 to R 907 are as defined in the formula (1).

11 . The organic electroluminescence device according to claim 1 , wherein in the formula (41), the a ring, the b ring and the c ring are independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms.

12 . The organic electroluminescence device according to claim 1 , wherein in the formula (41), R 401 and R 402 are independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms.

13 . The organic electroluminescence device according to claim 1 , wherein in the formula (41), R 401 and R 402 are independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

14 . The organic electroluminescence device according to claim 1 , wherein the compound represented by the formula (41) is a compound represented by the following formula (42):

wherein in the formula (42),

R 401A forms a substituted or unsubstituted heterocyclic ring by bonding with one or more selected from the group consisting of R 411 and R 421 , or does not form a substituted or unsubstituted heterocyclic ring, and R 402A forms a substituted or unsubstituted heterocyclic ring by bonding with one or more selected from the group consisting of R 413 and R 414 , or does not form a substituted or unsubstituted heterocyclic ring;

R 401A and R 402A that do not form the substituted or unsubstituted heterocyclic ring are independently

a substituted or unsubstituted alkyl 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 substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or

a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;

at least one pair of adjacent two or more of R 411 to R 421 forms a substituted or unsubstituted, saturated or unsaturated ring by bonding with each other, or do not form a substituted or unsubstituted, saturated or unsaturated ring;

R 411 to R 421 that do not form the substituted or unsubstituted heterocyclic ring or the substituted or unsubstituted, saturated or unsaturated ring are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms; and

R 901 to R 907 are as defined in the formula (1).

15 . The organic electroluminescence device according to claim 1 , wherein the compound represented by the formula (41) is a compound represented by the following formula (43):

wherein in the formula (43),

R 431 forms a substituted or unsubstituted heterocyclic ring by bonding with R 446 , or does not form a substituted or unsubstituted heterocyclic ring, R 433 forms a substituted or unsubstituted heterocyclic ring by bonding with R 447 , or does not form a substituted or unsubstituted heterocyclic ring, R 434 forms a substituted or unsubstituted heterocyclic ring by bonding with R 451 , or does not form a substituted or unsubstituted heterocyclic ring, and R 441 forms a substituted or unsubstituted heterocyclic ring by bonding with R 442 , or does not form a substituted or unsubstituted heterocyclic ring;

at least one pair of adjacent two or more of R 431 to R 451 forms a substituted or unsubstituted, saturated or unsaturated ring by bonding with each other, or does not form a substituted or unsubstituted, saturated or unsaturated ring;

R 431 to R 451 that do not form the substituted or unsubstituted heterocyclic ring, or the substituted or unsubstituted, saturated or unsaturated ring are independently

a hydrogen atom,

a substituted or unsubstituted alkyl 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,

—Si(R 901 )(R 902 )(R 903 ),

—O—(R 904 ),

—S—(R 905 ),

—N(R 906 )(R 907 ),

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 monovalent heterocyclic group having 5 to 50 ring atoms; and

R 901 to R 907 are as defined in the formula (1).

16 . The organic electroluminescence device according to claim 1 , which further comprises a hole-transporting layer between the anode and the emitting layer.

17 . The organic electroluminescence device according to claim 1 , which further comprises an electron-transporting layer between the cathode and the emitting layer.

18 . An electronic appliance wherein the organic electroluminescence device according to claim 1 is provided.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2021
From: NAKANO, YUKI; YAMAKI, TARO; TASAKI, SATOMI; KATO, TOMOKI; SEDA, KEITA; TAKAHASHI, RYOTA
To: IDEMITSU KOSAN CO.,LTD.
Reel/Frame 056724/0223 →
Priority Claims (2)
JP 2018-188682 · Oct 3, 2018 · national
JP 2019-086182 · Apr 26, 2019 · national
Continuity (3)
Continuation In Part 16587468 · Sep 30, 2019
Continuation In Part 16514934 · Jul 17, 2019
Related Publication 20210384430A1 · Dec 9, 2021
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