A method for the regiospecific synthesis of a class of quinonoid tetraazapentacene organic small molecules
By introducing long alkyl chains and terminal groups into quinone-tetraazapentabenzene compounds through a multi-step synthesis method, the problems of harshness and low solubility of existing synthesis methods have been solved. This has resulted in quinone-tetraazapentabenzene compounds with high solubility and excellent photoelectric properties, thus expanding their application in organic electronic materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DALIAN UNIV OF TECH
- Filing Date
- 2026-04-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for synthesizing quinone-tetraazapentabenzene are demanding, have low yields, consume large amounts of solvent, cannot introduce long alkyl chains or modified phenyl groups, and have low solubility, which limits their application in organic electronic materials.
The reaction was carried out in the presence of N,N-diisopropylethylamine in an alcohol solvent. By combining tin reduction and acidic conditions, a multi-step synthetic method was used to introduce long alkyl chains at the nitrogen position and different groups at the terminal positions to achieve the regiospecific synthesis of quinone-type tetraazapentabenzene.
A quinone-type tetraazapentabenzene compound with a long alkyl chain at the nitrogen position and a phenyl side chain was synthesized, which improved the solubility and photoelectric properties, and had a strong absorption peak and a high molar extinction coefficient, making it suitable for organic field-effect transistors and organic solar cells.
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