IP Library Granted Patent US 12,534,462
Granted Patent B2
US 12,534,462 · App. 18/169,289 · Granted Jan 27, 2026

Substituted heteroaryls as thermally assisted delayed fluorescent materials

Inventor: Jian Li (Tempe, AZ)
Assignee: Arizona Board of Regents on behalf of Arizona State University
C07D471/14C07D471/04C07D471/22C07D493/22C07D495/14C07D495/22C09K11/06H10K85/636H10K85/657H10K85/6572C09K2211/1018H10K50/11H10K2101/10
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Quick Facts
Patent No.
US 12,534,462
App. No.
18/169,289
Granted
Jan 27, 2026
Kind
B2
Abstract

Thermally assisted delayed fluorescent materials with triad-type materials for use in full color displays and lighting applications with the following generic structures are provided:

Claims (22)

1 . A compound represented by any one of the following formulas:

wherein:

represents:

each R X independently represents hydrogen, deuterium, fluoro, bromo, iodo, cyano, isonitrile, nitro, alkyl, haloalkyl, aralkyl, alkenyl, alkynyl, carbamoyl, carboxy, alkoxycarbonyl, amino, monoalkylamino, monoarylamino, dialkylamino, diarylamino, acylamino, ureido, alkoxycarbonylamino, aryloxycarbonylamino, hydrazino, alkylsulfonylamino, arylsulfonylamino, hydroxy, alkoxy, aryloxy, trialkylsilyl, trialkoxysilyl, triarylsilyl, phosphoramide, thiol, alkylthio, alkylsulfinyl, sulfamoyl, sulfonic acid, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, or heteroaryl;

each R 1 independently represents hydrogen, deuterium, halogen, cyano, isonitrile, nitro, alkyl, haloalkyl, aralkyl, alkenyl, alkynyl, carbamoyl, carboxy, alkoxycarbonyl, amino, monoalkylamino, monoarylamino, dialkylamino, diarylamino, acylamino, ureido, alkoxycarbonylamino, aryloxycarbonylamino, hydrazino, alkylsulfonylamino, arylsulfonylamino, hydroxy, alkoxy, aryloxy, trialkylsilyl, trialkoxysilyl, triarylsilyl, phosphoramide, thiol, alkylthio, alkylsulfinyl, sulfamoyl, sulfonic acid, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, or heteroaryl; and

each R 2 independently represents hydrogen, deuterium, halogen, cyano, isonitrile, nitro, alkyl, haloalkyl, aralkyl, alkenyl, alkynyl, carbamoyl, carboxy, alkoxycarbonyl, amino, monoalkylamino, monoarylamino, dialkylamino, diarylamino, acylamino, ureido, alkoxycarbonylamino, aryloxycarbonylamino, hydrazino, alkylsulfonylamino, arylsulfonylamino, hydroxy, alkoxy, aryloxy, trialkylsilyl, trialkoxysilyl, triarylsilyl, phosphoramide, thiol, alkylthio, alkylsulfinyl, sulfamoyl, sulfonic acid, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, or heteroaryl;

wherein the alkyl, haloalkyl, and aralkyl of each R X , R 1 , and R 2 is optionally and independently substituted with one or more substituents independently selected from the group consisting of deuterium, halogen, cyano, isonitrile, nitro, carbamoyl, carboxy, alkoxycarbonyl, amino, monoalkylamino, monoarylamino, dialkylamino, diarylamino, acylamino, ureido, alkoxycarbonylamino, aryloxycarbonylamino, hydrazino, alkylsulfonylamino, arylsulfonylamino, hydroxy, alkoxy, aryloxy, trialkylsilyl, trialkoxysilyl, triarylsilyl, phosphoramide, thiol, alkylthio, alkylsulfinyl, sulfamoyl, sulfonic acid, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, and heteroaryl;

wherein the alkenyl and alkynyl of each R X , R 1 , and R 2 is optionally and independently substituted with one or more substituents independently selected from the group consisting of deuterium, halogen, cyano, isonitrile, nitro, haloalkyl, aralkyl, carbamoyl, carboxy, alkoxycarbonyl, amino, monoalkylamino, monoarylamino, dialkylamino, diarylamino, acylamino, ureido, alkoxycarbonylamino, aryloxycarbonylamino, hydrazino, alkylsulfonylamino, arylsulfonylamino, hydroxy, alkoxy, aryloxy, trialkylsilyl, trialkoxysilyl, triarylsilyl, phosphoramide, thiol, alkylthio, alkylsulfinyl, sulfamoyl, sulfonic acid, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, and heteroaryl; and

wherein the carbamoyl, alkoxycarbonyl, amino, monoalkylamino, monoarylamino, dialkylamino, diarylamino, acylamino, ureido, alkoxycarbonylamino, aryloxycarbonylamino, alkylsulfonylamino, arylsulfonylamino, alkoxy, aryloxy, trialkylsilyl, trialkoxysilyl, triarylsilyl, phosphoramide, alkylthio, sulfamoyl, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, and heteroaryl of each R X , R 1 , and R 2 is optionally and independently substituted with one or more substituents independently selected from the group consisting of deuterium, halogen, cyano, isonitrile, nitro, alkyl, haloalkyl, aralkyl, alkenyl, alkynyl, carbamoyl, carboxy, alkoxycarbonyl, amino, monoalkylamino, monoarylamino, dialkylamino, diarylamino, acylamino, ureido, alkoxycarbonylamino, aryloxycarbonylamino, hydrazino, alkylsulfonylamino, arylsulfonylamino, hydroxy, alkoxy, aryloxy, trialkylsilyl, trialkoxysilyl, triarylsilyl, phosphoramide, thiol, alkylthio, alkylsulfinyl, sulfamoyl, sulfonic acid, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, and heteroaryl.

2 . The compound of claim 1 , wherein

represents:

3 . The compound of claim 1 , wherein

represents:

4 . The compound of claim 1 , wherein

represents:

5 . The compound of claim 1 , wherein

represents:

6 . The compound of claim 1 , wherein the compound is selected from the group consisting of:

7 . A light emitting diode comprising the compound of claim 1 .

8 . A light emitting diode comprising the compound of claim 6 .

9 . A light emitting device comprising the light emitting diode of claim 7 .

10 . A light emitting device comprising the light emitting diode of claim 8 .

Continuity (5)
Continuation 17066965 · Oct 9, 2020
Continuation 16552585 · Aug 27, 2019
Continuation 15984102 · May 18, 2018
Provisional Application 62508555 · May 19, 2017
Related Publication 20230192695A1 · Jun 22, 2023
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