| CPC H10K 85/654 (2023.02) [C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02)] | 13 Claims |
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1. A compound of Formula 1:
![]() wherein:
X is O or S,
R1 to R4 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C6 aryl group, a C3-C60 aliphatic ring group, a C1 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxy group, and a C6-C30 aryloxy group, and adjacent groups thereof may be bonded to each other to form a ring, with the proviso that at least one of R3 and R4 is not hydrogen nor deuterium, or at least one of R1 to R4 forms a ring with an adjacent group thereof,
a and d are each an integer of 0 to 4, b and c are each an integer of 0 to 3,
Ar1 and Ar2 are independently selected from the group consisting of a C6-C60 aryl group, a C2-C60 heterocyclic group containing at least one heteroatom of O, N, S, Si, and P, a C3-C60 aliphatic ring group and a C1-C50 alkyl group.
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