US 12,439,819 B2
Organic electroluminescent compound and organic electroluminescent device comprising the same
Ga-Won Lee, Gyeonggi-do (KR); Ji-Song Jun, Gyeonggi-do (KR); Jeong-Eun Yang, Gyeonggi-do (KR); and Kyoung-Jin Park, Gyeonggi-do (KR)
Assigned to DuPont Specialty Materials Korea Ltd., (KR)
Appl. No. 17/043,293
Filed by ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD., Chungcheongnam-do (KR)
PCT Filed Mar. 27, 2019, PCT No. PCT/KR2019/003537
§ 371(c)(1), (2) Date Sep. 29, 2020,
PCT Pub. No. WO2019/190184, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 10-2018-0036243 (KR), filed on Mar. 29, 2018; and application No. 10-2019-0031140 (KR), filed on Mar. 19, 2019.
Prior Publication US 2021/0036239 A1, Feb. 4, 2021
Int. Cl. H01L 51/50 (2006.01); H10K 85/60 (2023.01); H10K 50/16 (2023.01)
CPC H10K 85/6572 (2023.02) [H10K 85/631 (2023.02); H10K 85/654 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/16 (2023.02)] 10 Claims
OG exemplary drawing
 
1. An organic electroluminescent compound represented by the following formula 1:

OG Complex Work Unit Chemistry
wherein,
at least one of R1, R2 and R3 is represented by the following formula 2;

OG Complex Work Unit Chemistry
wherein,
L represents a single bond, a substituted or unsubstituted (C6-C30)arylene, a substituted or unsubstituted (3- to 30-membered)heteroarylene, or a substituted or unsubstituted (C3-C30)cycloalkylene;
Ar represents hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted (C1-C30)alkoxy, a substituted or unsubstituted tri(C1-C30)alkylsilyl, a substituted or unsubstituted di(C1-C30)alkyl(C6-C30)arylsilyl, a substituted or unsubstituted (C1-C30)alkyldi(C6-C30)arylsilyl, or a substituted or unsubstituted tri(C6-C30)arylsilyl, a substituted or unsubstituted mono- or di-(C1-C30)alkylamino, a substituted or unsubstituted mono- or di-(C6-C30)arylamino, or a substituted or unsubstituted (C1-C30)alkyl(C6-C30)arylamino, provided that when R1 and R3 are hydrogen and at least one of R as is formula 2, Ar represents a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted tri(C1-C30)alkylsilyl, a substituted or unsubstituted di(C1-C30)alkyl(C6-C30)arylsilyl, a substituted or unsubstituted (C1-C30)alkyldi(C6-C30)arylsilyl, or a substituted or unsubstituted tri(C6-C30)arylsilyl, a substituted or unsubstituted mono- or di-(C1-C30)alkylamino, a substituted or unsubstituted mono- or di-(C6-C30)arylamino, or a substituted or unsubstituted (C1-C30)alkyl(C6-C30)arylamino;
R1 is represented by formula 2, or represent hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted (C1-C30)alkoxy, a substituted or unsubstituted tri(C1-C30)alkylsilyl, a substituted or unsubstituted di(C1-C30)alkyl(C6-C30)arylsilyl, a substituted or unsubstituted (C1-C30)alkyldi(C6-C30)arylsilyl, or a substituted or unsubstituted tri(C6-C30)arylsilyl, a substituted or unsubstituted mono- or di-(C1-C30)alkylamino, a substituted or unsubstituted mono- or di-(C6-C30)arylamino, or a substituted or unsubstituted (C1-C30)alkyl(C6-C30)arylamino;
R2 and R3 each independently, are represented by formula 2, or represent hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted (C1-C30)alkoxy, a substituted or unsubstituted tri(C1-C30)alkylsilyl, a substituted or unsubstituted di(C1-C30)alkyl(C6-C30)arylsilyl, a substituted or unsubstituted (C1-C30)alkyldi(C6-C30)arylsilyl, or a substituted or unsubstituted tri(C6-C30)arylsilyl, a substituted or unsubstituted mono- or di-(C1-C30)alkylamino, a substituted or unsubstituted mono- or di-(C6-C30)arylamino, or a substituted or unsubstituted (C1-C30)alkyl(C6-C30)arylamino; or may be linked to adjacent substituents to form a ring; with the proviso that when R1 and R3=hydrogen then R2 cannot be cyano, alkyl, or alkoxy;
p to r each independently represent an integer of 1 to 4;
s and t each independently represent an integer of 1 to 3; and
when p to t are 2 or more, each of R1, each of R2, each of R3, each of L or each of Ar may be the same or different.