公开(公告)号：US20210395269A1

公开(公告)日：2021-12-23

申请号：US17285405

申请日：2019-11-26

Applicant: HODOGAYA CHEMICAL CO., LTD.

Inventor： Kouki KASE ,  Si-In KIM ,  Ji-Yung KIM ,  Yuta HIRAYAMA

IPC: C07D498/04 ,  H01L51/00 ,  H01L51/42 ,  H01L51/50

Abstract: An object of the present invention is to provide, as a material for a highly efficient and highly durable organic EL element, an organic compound having excellent properties, including excellent electron-injecting/transporting capability, hole-blocking capability, and high stability in the form of a thin film. Another object of the present invention is to provide a highly efficient and highly durable organic EL element by using this compound. The compound having an azabenzoxazole ring structure of the present invention has excellent heat resistance, and good electron-transporting capability. An organic EL element having an electron-transporting layer, a hole-blocking layer, a light-emitting layer, or an electron-injecting layer including the compound had favorable element characteristics.

公开(公告)号：US20200035927A1

公开(公告)日：2020-01-30

申请号：US16522107

申请日：2019-07-25

Applicant: HODOGAYA CHEMICAL CO., LTD.

Inventor： Kouki KASE ,  Si-In KIM ,  Yuta HIRAYAMA

IPC: H01L51/00 ,  C07D491/147 ,  C09K11/06

Abstract: A compound has an azaindeno phenanthrene ring structure, the compound being represented by the following general formula (A-1).

公开(公告)号：US20210009584A1

公开(公告)日：2021-01-14

申请号：US16981302

申请日：2019-03-20

Applicant: HODOGAYA CHEMICAL CO., LTD.

Inventor： Kouki KASE ,  Su-Jin LEE ,  Si-In KIM ,  Kazuyuki SURUGA ,  Yuta HIRAYAMA

IPC: C07D471/04 ,  H01L51/00

Abstract: A compound including a benzimidazole ring structure, represented by general formula (1). (In formula (1), X1 and X2 may be the same or different and each represent a specific carbon atom or a nitrogen atom, Ar represents a specific group, R1 and R2 may be the same or different and each represent a specific group, and m is an integer of 0-4.)

公开(公告)号：US20200277272A1

公开(公告)日：2020-09-03

申请号：US16646108

申请日：2018-09-07

Applicant: HODOGAYA CHEMICAL CO., LTD.

Inventor： Kouki KASE ,  Si-In KIM ,  Yuta HIRAYAMA ,  Kazuyuki SURUGA

IPC: C07D401/04 ,  C07D405/14 ,  C07D401/14 ,  C07D409/14 ,  C07F7/08 ,  C07D471/04 ,  C07D413/14 ,  H01L51/00

Abstract: [Object] It is an object of the present invention to provide, as a material for organic EL device having high efficiency and high durability, an organic compound having excellent characteristics such as excellent electron injection/transport performance, hole blocking performance, and high stability in a film state, and an organic EL device having high efficiency and high durability, which is obtained by using this compound.[Solving Means] A compound having a pyrimidine ring structure, the compound being represented by the following general formula (1). (In the formula, A1 represents a substituted or unsubstituted aromatic heterocyclic group. Ar1 represents a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group. Ar2 represents a deuterium atom, a trimethylsilyl group, a triphenylsilyl group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group. m represents an integer of 1 to 3, n represents an integer of 0 to 2, and o represents an integer of 1 to 2. In a case where m is an integer of two or more, a plurality of Ar1 bonded to the same pyrimidine ring may be the same or different from each other. In a case where n is an integer of two, a plurality of Ar2 bonded to the same pyrimidine ring may be the same or different from each other. In a case where o is an integer of two, a plurality of A1 bonded to the same pyrimidine ring may be the same or different from each other. However, the sum of the integers of m, n, and o is 4 or less. Note that in a case where n is 0, Ar2 represents a hydrogen atom.)