Patent ID: 11968893
Assignee: UDC IRELAND LIMITED
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 7:
8. The electroluminescent device of claim 5, wherein the compound is represented by formula (Xa) or (Xb), wherein V is C1-C8alkyl;
X3 and X4 are independently of each other H, C1-C8alkyl, C1-C8alkoxy, C1-C8thioalkyl, or phenyl,
X5 is H or C1-C8alkoxy;
W5 is H, C1-C8alkyl, or O(CH2)n1—X;
Y5 is H, C1-C8alkyl, or O(CH2)n1—X;
Y3, Y4, W3, and W4 are independently of each other C1-C8alkyl; C1-C8alkoxy; C1-C8thioalkyl; halogen; phenyl; or O(CH2)n1—X;
each occurrence of n1 is independently an integer of 1 to 5;
each X is independently —O—(CH2)m1CH3, —OC(O)—(CH2)m1CH3, —C(O)—O—C1-C8alkyl, or —NR103R104;
wherein m1 is an integer of 0 to 5; and
R103 and R104 are independently of each other H or C1-C8-alkyl, wherein R103 and R104 together optionally form a five or six membered heterocyclic ring.