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US-2024425484-A1 · Dec 26, 2024 · US
Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazine
US10497878B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10497878-B2 |
| Application number | US-201916260652-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2019 |
| Priority date | Nov 10, 2015 |
| Publication date | Dec 3, 2019 |
| Grant date | Dec 3, 2019 |
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- Title
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Abstract
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A compound represented by formula (I) or formula (1I): in formula (I), R 3 represents an electron donating group, R 4 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L 3 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L 4 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L 3 and L 4 may bond together to form a ring with the carbon atoms to which they are bonded, in formula (II), R 5 represents an electron donating group, R 6 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L 5 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L 6 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound represented by formula (II): where: R 5 represents an electron donating group, R 6 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L 5 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L 6 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group. 2. The compound according to claim 1 , wherein R 5 is at least one selected from the group consisting of the groups represented by formulas (d1) to (d7): where: R represents a substituent, a and b each independently represent a number of R in the parentheses and are an integer of 0 to 4, c represents a number of R in the parentheses and is an integer of 0 to 2, d represents a number of R in the parentheses and is an integer of 0 to 5, and when there are a plurality of R, they may be the same substituents or different substituents, two adjacent Rs may bond together to form a ring with the carbon atoms to which Rs are bonded, and * represents a bonding site. 3. The compound according to claim 1 , wherein R 6 is at least one selected from the group consisting of the groups represented by formulas (d1) to (d7): where: R represents a substituent, a and b each independently represent a number of R in the parentheses and are an integer of 0 to 4, c represents a number of R in the parentheses and is an integer of 0 to 2, d represents a number of R in the parentheses and is an integer of 0 to 5, and when there are a plurality of R, they may be the same substituents or different substituents, two adjacent Rs may bond together to form a ring with the carbon atoms to which Rs are bonded, and * represents a bonding site. 4. The compound according to claim 1 , wherein L 5 and L 6 are each independently a substituted or unsubstituted arylene group. 5. A luminescent material comprising the compound defined in claim 1 . 6. A luminescence device comprising the luminescent material defined in claim 5 .
Assignees
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Classifications
containing three or more hetero rings · CPC title
- C07D401/14Primary
containing three or more hetero rings · CPC title
containing organic luminescent materials · CPC title
containing three or more hetero rings · CPC title
Heterocyclic compounds · CPC title
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Frequently asked questions
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- What does patent US10497878B2 cover?
- A compound represented by formula (I) or formula (1I): in formula (I), R 3 represents an electron donating group, R 4 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L 3 represents a substituted or unsubstituted het…
- 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 C07D401/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 03 2019 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).