Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazine
US-2018273513-A1 · Sep 27, 2018 · US
Dicyano N-heterocyclic compound, light-emitting material, and light-emitting element in which same is used
US11279680B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11279680-B2 |
| Application number | US-201816471980-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 9, 2018 |
| Priority date | Jan 13, 2017 |
| Publication date | Mar 22, 2022 |
| Grant date | Mar 22, 2022 |
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- Title
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Abstract
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Provided are: a dicyano N-heterocyclic compound represented by formula (I) (in the formula, R3 represents an electron-donating group, and n represents the number of repetitions of the content in brackets and is 0 or 1), the compound having exceptional heat resistance and light emission characteristics; a light-emitting material; and a light-emitting element in which the same is used.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound of formula (I): in formula (I), R 3 represents a phenyl group having a substituent, and the substituent is a hetero ring in which at least two substituted or unsubstituted aromatic rings are condensed, or a substituted or unsubstituted diarylamino group, and n represents a number of repetitions of a content in brackets and is 0 or 1. 2. The compound according to claim 1 , wherein R 3 is at least one selected from the group consisting of groups of formula (d1) to formula (d4): in the formulae (d1) to (d4), R 1 , R 2 , R 4 , R 5 and R 6 each independently represents a substituent; a and b each independently represents the number of R 1 or R 2 in brackets and is any one of integers of 0 to 4; c represents the number of R 4 in brackets and is any one of integers of 0 to 2; d each independently represents the number of R 5 or R 6 in brackets and is any one of integers of 0 to 5, when each of R 1 , R 2 , R 4 , R 5 or R 6 is plurally substituted, the substituents may be identical to or different from each other, two adjacent substituents may bond together to form a ring with carbon atoms bonded with the substituents, and * represents a bonding position. 3. A light-emitting material comprising the compound of claim 1 . 4. A light-emitting element comprising the light-emitting material of claim 3 .
Assignees
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Classifications
- C07D401/10Primary
linked by a carbon chain containing aromatic rings · CPC title
- C07D413/10Primary
linked by a carbon chain containing aromatic rings · CPC title
linked by a carbon chain containing aromatic rings · CPC title
containing three or more hetero rings · CPC title
- C07D241/36Primary
condensed with carbocyclic rings or ring systems · CPC title
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- What does patent US11279680B2 cover?
- Provided are: a dicyano N-heterocyclic compound represented by formula (I) (in the formula, R3 represents an electron-donating group, and n represents the number of repetitions of the content in brackets and is 0 or 1), the compound having exceptional heat resistance and light emission characteristics; a light-emitting material; and a light-emitting element in which the same is used.
- Who is the assignee on this patent?
- Univ Kyushu Nat Univ Corp, Nippon Soda Co
- What technology area does this patent fall under?
- Primary CPC classification C07D401/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 22 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).