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Green fluorescent compound, its synthesis method and use

A green fluorescence and compound technology, applied in chemical instruments and methods, luminescent materials, organic chemistry, etc., can solve the problems of few types of yellow and green fluorescent materials, unstable chemical structure, easy crystallization or oxidation, etc., and achieve UV resistance performance. Extreme, convenient application, stable molecular structure

Active Publication Date: 2016-06-01
JIANGYIN TIANSHUN COLOR PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Because it is a small molecular material, its chemical structure is unstable, and it is easy to crystallize or oxidize
[0005] 2. Some materials have a short service life and will fail under long-term ultraviolet radiation
[0006] 3. There are fewer types of yellow and green fluorescent materials

Method used

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  • Green fluorescent compound, its synthesis method and use
  • Green fluorescent compound, its synthesis method and use
  • Green fluorescent compound, its synthesis method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The chemical reaction formula is as follows:

[0031]

[0032] Weigh 10mmol o-aminophenol (1.09g) and trimethylacetaldehyde (0.86g) and heat and dissolve them respectively in ethanol solution, mix them in a water bath at 60°C, add a platinum-rhodium alloy mesh as a catalyst in the solution, continue Stirring and reflux reaction for about 10 hours, a tan solid precipitate was obtained, and the solid was washed by suction filtration with ethanol several times to obtain a relatively pure product C 11 h 13 ON.

[0033] After testing, the substance has an emission wavelength of 530nm-545nm, is a green fluorescent material, and has high quantum efficiency.

Embodiment 2

[0035] The chemical reaction formula is as follows:

[0036]

[0037] Weigh 10mmol o-aminophenol (1.09g) and 4-tert-butylphenylpropionaldehyde trimethylacetaldehyde (1.90g) in DMSO (dimethyl sulfoxide) solution and heat to dissolve respectively, and place them in a water bath at 80°C Carry out a reflux reaction, add an appropriate amount of tetrabutyl titanate (TTOB) as a catalyst during the reaction, and continue the reaction for about 15 hours to obtain a gray solid precipitate. Similarly, the purer product C is obtained by repeated suction filtration and washing with alcohol. 19 h 21 ON.

[0038] After testing, the substance has an emission wavelength of 540nm-560nm, is a green fluorescent material, has a relatively stable structure, and has good ultraviolet resistance.

Embodiment 3

[0040] The chemical reaction formula is as follows:

[0041]

[0042] Weigh 10mmol of o-aminothiophenol (1.25g) and 2-chloro-4-iodopyridine-3-carbaldehyde (2.67g) in DMSO (dimethyl sulfoxide) solution, heat and dissolve respectively, and place in 80°C water bath The reflux reaction was carried out in the middle of the reaction. During the reaction, an appropriate amount of tetrabutyl titanate (TTOB) was added as a catalyst, and the reaction was continued for about 15 hours to obtain a yellow solid precipitate. Similarly, the purer product C was obtained by repeated suction filtration and washing with alcohol. 12 H6ON 2 ClI.

[0043] After testing, the substance has an emission wavelength of 520nm-540nm, is a yellow-green fluorescent material, has a relatively stable structure, and has good ultraviolet resistance.

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PUM

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Abstract

The invention relates to a green fluorescent compound and a synthetic method and application of the green fluorescent compound. The excitation wavelength of the green fluorescent compound ranges from 350 nm to 400 nm, and the emission wavelength of the green fluorescent compound ranges from 526 nm to 550 nm. The general structural formula of the green fluorescent compound is shown in the specification, wherein R2 is O or S or Se or Te, and R1 is any functional group capable of being bonded with aldehydes to produce an organic molecule. The green fluorescent compound is stable in chemical structure and long in service life. The green fluorescent compound can be applied to the fields of optical electronic devices, biological tracking, optical chemical sensors, anti-counterfeit printing and the like.

Description

technical field [0001] The invention relates to a novel organic fluorescent luminescent material, in particular to a green fluorescent compound and a synthesis method thereof. The substance can be applied in the fields of optical electronic devices, biological tracking, photochemical sensors, anti-counterfeiting printing and the like. Background technique [0002] The substance absorbs light radiation and is excited, and then emits light of other wavelengths, which is photoluminescence. Photoluminescence has been widely used in lighting, display, anti-counterfeiting and other industries. Organic compounds with strong fluorescent light-emitting ability have very important potential application value, and can be developed as new functional materials, such as luminescent dyes, laser dyes, fluorescent probes, etc. [0003] Compared with traditional inorganic fluorescent materials, organic fluorescent materials have the following advantages: 1. Higher luminous brightness and eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D263/56C07D413/04C09K11/06
CPCC07D263/56C07D413/04C09K11/06C09K2211/1018
Inventor 顾根明
Owner JIANGYIN TIANSHUN COLOR PRINTING
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