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

Patent metadata

Field	Value
Publication number	US-12543494-B2
Application number	US-202217859480-A
Country	US
Kind code	B2
Filing date	Jul 7, 2022
Priority date	Jul 12, 2021
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

A compound represented by the following formula (1A) or (1B): (the symbols in the formulae (1A) and (1B) have the same meaning as defined in the specification), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.

First claim

What is claimed is:

1 . A compound represented by the following formula (1A) or (1B):

wherein at least one selected from R 1 to R 16 and at least one selected from R 21 to R 36 are represented by the following formula (2A), (2B), (2C) or (2D):

where * represents a bonding position to a carbon atom in the formula (1A) at which R 1 to R 16 are bonded or a bonding position to a carbon atom in the formula (1B) at which R 21 to R 36 are bonded,
L 1 to L 6 each independently represent 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,
a, b, c, d, e and f each independently represent 0, 1, 2 or 3, and (L 1 ) 0 , (L 2 ) 0 , (L 3 ) 0 , (L 4 ) 0 , (L 5 ) 0 and (L 6 ) 0 each independently represent a single bond,
when two or more L 1 s are present, they may be the same or different, when two or more L 2 s are present, they may be the same or different, when two or more L 3 s are present, they may be the same or different, when two or more L 4 s are present, they may be the same or different, when two or more L 5 s are present, they may be the same or different, and when two or more L 6 s are present, they may be the same or different,
HET represents a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,
X 1 and X 2 each independently represent 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,
Ar represents a substituted or unsubstituted aryl group having 10 to 50 ring carbon atoms,
Y represents a group selected from the following formulae (i) to (viii):

where ** represents a bonding position at which Y is bonded to L 6 in the formula (2D),
R A and R B each independently represent a hydrogen atom or a substituent Z 1 ,
R C , R D and R E each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
the substituent Z 1 is a halogen atom, a nitro group, a cyano group,
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,
a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms,
a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,
a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
a substituted or unsubstituted haloalkoxy group having 1 to 50 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 ), or
a group represented by —N(R 906 ) (R 907 ),
R 901 to R 907 each independently represent
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 two or more R 901 's are present, the R 901 's may be the same or different,
when two or more R 902 's are present, the R 902 's may be the same or different,
when two or more R 903 's are present, the R 903 's may be the same or different,
when two or more R 904 's are present, the R 904 's may be the same or different,
when two or more R 905 's are present, the R 905 's may be the same or different,
when two or more R 906 's are present, the R 906 's may be the same or different,
when two or more R 907 's are present, the R 907 's may be the same or different,
when R 1 , R 2 , R 9 and R 10 in the formula (1A) are all represented by the formula (2A), at least one selected from R 1 , R 2 , R 9 and R 10 is the formula (2A) in which HET contains a nitrogen atom,
when two or more selected from R 1 to R 16 in the formula (1A) are represented by the formula (2A), they may be the same or different, when two or more selected from R 1 to R 16 are represented by the formula (2B), they may be the same or different, when two or more selected from R 1 to R 16 are represented by the formula (2C), they may be the same or different, and when two or more selected from R 1 to R 16 are represented by the formula (2D), they may be the same or different, and R 1 to R 16 are not bonded to each other,
when two or more selected from R 21 to R 36 in the formula (1B) are represented by the formula (2A), they may be the same or different, when two or more selected from R 21 to R 36 are represented by the formula (2B), they may be the same or different, when two or more selected from R 21 to R 36 are represented by the formula (2C), they may be the same or different, and when two or more selected from R 21 to R 36 are represented by the formula (2D), they may be the same or different, and R 21 to R 36 are not bonded to each other,
in the formulae (1A) and (1B), R 1 to R 16 and R 21 to R 36 which are not represented by the formula (2A), (2B), (2C) or (2D) each independently represent a hydrogen atom or a substituent Z 2 ,
the substituent Z 2 is a halogen atom, a nitro group, a cyano group,
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 phenyl group,
a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms,
a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
a substituted or unsubstituted haloalkoxy group having 1 to 50 carbon atoms,
a group represented by —Si(R 901 )(R 902 )(R 903 ),
a group represented by —S—(R 905 ), or
a group represented by —N(R 906 )(R 907 ),
R 901 to R 907 each independently represent
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 two or more R 901 's are present, the R 901 's may be the same or different,
when two or more R 902 's are present, the R 902 's may be the same or different,
when two or more R 903 's are present, the R 903 's may be the same or different,
when two or more R 905 's are present, the R 905 's may be the same or different,
when two or more R 906 's are present, the R 906 's may be the same or different,
when two or more R 907 's are present, the R 907 's may be the sam

Assignees

• Idemitsu Kosan Co
• National Univ Corporation Tokai National Higher Education And Research System

Inventors

• Mitani Masato
• Seda Keita
• Yamaki Taro
• Tanaka Shota
• Sawato Tsukasa
• Saito Masatoshi
• Itoi Hiroaki
• Haketa Tasuku
• Yoshida Kei
• Mizutani Sayaka
• Itami Kenichiro
• Murakami Kei
• Matsubara Satoshi
• Koga Yoshito

Classifications

• H10K50/166

  comprising a multilayered structure · CPC title

• H10K50/156

  comprising a multilayered structure · CPC title

• C09K2211/1018

  Heterocyclic compounds · CPC title

• C09K2211/1014

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

• C09K2211/1011

  Condensed systems · CPC title