US 12,274,167 B2
Organic electroluminescent materials and devices
Hualong Ding, Beijing (CN); Chi Yuen Raymond Kwong, Beijing (CN); and Chuanjun Xia, Beijing (CN)
Assigned to BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Jul. 16, 2021, as Appl. No. 17/378,429.
Claims priority of application No. 202010698126.6 (CN), filed on Jul. 20, 2020; and application No. 202110716169.7 (CN), filed on Jun. 30, 2021.
Prior Publication US 2022/0020935 A1, Jan. 20, 2022
Int. Cl. H01L 51/50 (2006.01); C07D 263/32 (2006.01); C07D 413/14 (2006.01); H10K 85/60 (2023.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 50/19 (2023.01)
CPC H10K 85/656 (2023.02) [C07D 263/32 (2013.01); C07D 413/14 (2013.01); H10K 85/654 (2023.02); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 50/19 (2023.02)] 27 Claims
OG exemplary drawing
 
1. A compound, having a structure represented by Formula 1:

OG Complex Work Unit Chemistry
wherein
L is, at each occurrence identically or differently, selected from

OG Complex Work Unit Chemistry
 or any combination thereof;
ring AA is a conjugated structure having 4 to 30 ring atoms and at least one intra-ring double bond;
n is, at each occurrence identically or differently, selected from an integer from 0 to 10;
Y is, at each occurrence identically or differently, selected from the group consisting of CRL and N;
ring A is, at each occurrence identically or differently, a 5-membered heterocyclic ring, and the 5-membered heterocyclic ring comprises an intra-ring double bond, at least one N atom, and at least one W; W is, at each occurrence identically or differently, selected from the group consisting of O, S, Se, and NRN;
X is, at each occurrence identically or differently, selected from the group consisting of Se, NR′, and CR″R′″;
R and RL represent, at each occurrence identically or differently, mono-substitution, multiple substitutions or non-substitution;
R, R′, R″, R′″, RL, and RN are, at each occurrence identically or differently, selected from the group consisting of: hydrogen, deuterium, halogen, a nitroso group, a nitro group, an acyl group, a carbonyl group, a carboxylic acid group, an ester group, a cyano group, an isocyano group, SCN, OCN, SF5, a boranyl group, a sulfinyl group, a sulfonyl group, a phosphoroso group, a hydroxyl group, a sulfanyl group, substituted or unsubstituted alkyl having 1 to 20 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 ring carbon atoms, substituted or unsubstituted heteroalkyl having 1 to 20 carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 20 ring atoms, substituted or unsubstituted aralkyl having 7 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 20 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 carbon atoms, substituted or unsubstituted alkenyl having 2 to 20 carbon atoms, substituted or unsubstituted alkynyl having 2 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 3 to 30 carbon atoms, substituted or unsubstituted alkylsilyl having 3 to 20 carbon atoms, substituted or unsubstituted arylsilyl having 6 to 20 carbon atoms, and combinations thereof;
when L is selected from

OG Complex Work Unit Chemistry
 and n=0, at least one of substituents R and RN is a group having at least one electron-withdrawing group;
when X is selected from NR′ or CR″R′″, at least one of R′, R″ and R′″ is a group having at least one electron-withdrawing group;
adjacent substituents R″, R′″ can be optionally joined to form a ring; and
adjacent substituents R, RL can be optionally joined to form a ring; when adjacent substituents RL are joined to form a ring, the resulting ring has at least 4 ring atoms; and
when adjacent substituents R are joined to form a ring, the resulting ring has at least 6 ring atoms.