Patent ID: 11926638
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 10:
11. The compound of claim 1, wherein at least one of R is, , when R is present, or
at least one of R′ and R″ are joined to form, when R′ and R″ are present;
wherein:
ring X is a 5-membered or 6-membered carbocyclic or heterocyclic ring;
RX represent mono to a maximum possible allowed number of substitutions, or no substitution;
each RX, RE, and RF is independently a hydrogen or a substituent selected from the group consisting of deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof; and
at least one of RE and RF is not hydrogen.