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Chlorinated napthalenetetracarboxylic acid derivatives, preparation thereof and use thereof in organic electronics
US10214525B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10214525-B2 |
| Application number | US-201615334743-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 26, 2016 |
| Priority date | Jun 6, 2008 |
| Publication date | Feb 26, 2019 |
| Grant date | Feb 26, 2019 |
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- Title
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Abstract
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The present invention relates to chlorinated naphthalenetetracarboxylic acid derivatives, preparation thereof and use thereof as charge transport materials, exciton transport materials or emitter materials.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound of the formula (I.Ba) in which R 1 and R 3 are each Cl and R 2 and R 4 are each hydrogen, or R 1 and R 4 are each Cl and R 2 and R 3 are each hydrogen, R a and R b are each independently 1H,1H-perfluoro-C 2 -C 30 -alkyl or 1H,1H,2H,2H-perfluoro-C 3 -C 30 -alkyl, wherein R a and R b are not each 1H,1H-perfluoro-C 4 -alkyl. 2. The compound of the for a (I.Ba) according to claim 1 , wherein R 1 and R 4 are each Cl and R 2 and R 3 are each hydrogen. 3. A process for preparing compounds of the formula (I.Ba) according to claim 1 , the process comprising a2) reacting naphthalene-1,8:4,5-tetracarboxylic dianhydride with an amine of the formula Ra—NH 2 and optionally an amine of the formula Rb—NH 2 to obtain a compound of the formula (D) b2) subjecting the compound obtained in step a2) to a chlorination by reaction with chlorine in the presence of iodine as a catalyst. 4. The process as claimed in claim 3 , wherein the chlorination of the compound of the formula (D) in step b2) is brought about by reaction with chlorine in chlorosulfonic acid and in the presence of catalytic amounts of iodine. 5. A compound of the formula (I.Ba) in which R 1 and R 3 are each Cl and R 2 and R 4 are each hydrogen; or R 1 and R 4 are each Cl and R 2 and R 3 are each hydrogen, and R a and R b are each 1H,1H-perfluoro-C 4 -alkyl. 6. The compound according to claim 5 , wherein R 1 and R 3 are each chlorine. 7. The compound to claim 5 , wherein R 1 and R 4 are each chlorine.
Assignees
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Classifications
Peri-condensed systems · CPC title
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Electricity · mapped topic
in which the condensed system contains two hetero rings · CPC title
Electricity · mapped topic
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Frequently asked questions
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- What does patent US10214525B2 cover?
- The present invention relates to chlorinated naphthalenetetracarboxylic acid derivatives, preparation thereof and use thereof as charge transport materials, exciton transport materials or emitter materials.
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification C09K11/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 26 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).