US 12,239,018 B2
Organic electroluminescent materials and devices
Zhihao Cui, Beijing (CN); Hualong Ding, Beijing (CN); Chi Yuen Raymond Kwong, Beijing (CN); Chuanjun Xia, Beijing (CN); Juntao Hu, Beijing (CN); and Xiao Chen, Beijing (CN)
Assigned to BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Feb. 23, 2021, as Appl. No. 17/182,611.
Claims priority of provisional application 62/982,765, filed on Feb. 28, 2020.
Claims priority of application No. 202110081423.0 (CN), filed on Jan. 22, 2021.
Prior Publication US 2021/0280795 A1, Sep. 9, 2021
Int. Cl. H10K 85/60 (2023.01); C07D 498/04 (2006.01); C09K 11/06 (2006.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01)
CPC H10K 85/657 (2023.02) [C07D 498/04 (2013.01); C09K 11/06 (2013.01); C09K 2211/1018 (2013.01); H10K 50/15 (2023.02); H10K 50/17 (2023.02)] 33 Claims
OG exemplary drawing
 
1. A compound having a structure of B(A)2, wherein A has a structure of Formula 1:

OG Complex Work Unit Chemistry
wherein,
X is, at each occurrence identically or differently, selected from the group consisting of O, S, Se, NR′ and CR″R′″;
Y is N;
W is, at each occurrence identically or differently, selected from the group consisting of O, S, Se and NRN;
wherein, B is selected from a substituted or unsubstituted conjugated unsaturated fused aryl ring having 10 to 30 ring atoms, or a substituted or unsubstituted conjugated unsaturated fused heteroaryl ring having 10 to 30 ring atoms, or selected from the structure represented by one of Formula 2 to Formula 8, or combinations thereof:

OG Complex Work Unit Chemistry
wherein B is fused with each of A through a single bond and a double bond;
wherein Z is, at each occurrence, identically or differently, selected from the group consisting of CR and N;
n is, at each occurrence, identically or differently, selected from 0, 1, or 2;
wherein, R, R′, R″, R′″ and RN are, at each occurrence, identically or differently, selected from the group consisting of hydrogen, deuterium, halogen, nitroso, nitro, acyl, carbonyl, a carboxylic acid group, an ester group, cyano, isocyano, SCN, OCN, SF5, boranyl, sulfinyl, sulfonyl, phosphoroso, sulfanyl, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted heteroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted arylalkyl group having 7 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 20 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 20 carbon atoms, and combinations thereof;
wherein at least one of R, R′, R″, R′″ and RN is a group having at least one electron-withdrawing group;
any two adjacent substituents R, R′, R″, R″ and RN can be optionally joined to form a ring.