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Method for preparing pyrrolo-pyrroledione derivative

A technology of pyridinedione and derivatives, which is applied in the field of preparation of organic compounds, can solve the problems of poor material solubility, inability to overcome fluorescence quenching, and low material yield.

Active Publication Date: 2019-12-03
SANMING UNIV
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  • Abstract
  • Description
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Problems solved by technology

The aryl-substituted DPP has a large conjugated planar structure, and has a high fluorescence quantum yield in the solution state, and has a good application effect in fluorescence applications. However, due to the strong intermolecular interactions of DPP molecules, The solubility of the material is very poor, and the traditional method is usually to improve the solubility by introducing linear or split linear alkyl groups, making it suitable for subsequent solution processing and application
[0003] However, it is still unable to overcome the problem of fluorescence quenching caused by strong intermolecular interactions in the solid state. The material has basically no fluorescence or the fluorescence quantum yield is extremely low in the solid state.

Method used

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  • Method for preparing pyrrolo-pyrroledione derivative
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  • Method for preparing pyrrolo-pyrroledione derivative

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] In order to prepare the diketopyrinopyrazole derivatives of the present invention, the specific steps are as follows:

[0025] 1) Dissolve 3,6-di-tert-butylcarbazole, dibromohexane, and sodium hydroxide in dimethylformamide, stir at 55°C for 3 hours, add water to terminate the reaction, and remove water by vacuum distillation and solvent,...

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Abstract

The invention provides a method for preparing a pyrrolo-pyrroledione derivative. According to the method, alkyl is introduced to an N atom of 3,6-di(thien-2-yl)-2,5-dihydropyrrolyl[3,4-c]pyrrolyl-1,4-dione. On one hand, the polarity of molecules can be lowered, the acting force among the molecules is destroyed, and the solubility of the material can be improved by the introduced alkyl; and on theother hand, a tert-butyl unit is located on a periphery modified carbazole unit, by modified molecules, the solubility can be further improved, and the solid-state quantum yield is increased.

Description

technical field [0001] The invention relates to a preparation method of an organic compound, in particular to a preparation method of a pyroxopyrazole diketone derivative. Background technique [0002] Diketopyrinopyrrole (DPP) dyes have bright color, good chemical properties, and excellent weather resistance, fluidity, hiding power and chemical resistance. In recent years, DPP materials have been used for their excellent Absorption coefficient has been widely used in the field of organic solar cells and has excellent performance. The aryl-substituted DPP has a large conjugated planar structure, and has a high fluorescence quantum yield in the solution state, and has a good application effect in fluorescence applications. However, due to the strong intermolecular interactions of DPP molecules, The solubility of the material is very poor, and the traditional method is usually to improve the solubility by introducing linear or split linear alkyl groups, so that it is suitable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/04C09K11/06
CPCC07D487/04C09K11/06C09K2211/1029C09K2211/1092
Inventor 赵炎吴梦男吴宗禹肖旺钏念保义
Owner SANMING UNIV
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