Patent ID: 11903306
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C  Y | IPC C  H

Claim 14:
15. The compound of claim 1, wherein the compound is selected from the group consisting of:, wherein R1′, R2′, R3′, and R4′ each represents mono to the maximum possible number of substitution, or no substitution;
wherein R1′, R2′, R3′, and R4′ are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and
wherein any two substituents among R, R′, R1, R2, R3, R4, R5, R6, and R7 are optionally joined or fused into a ring.