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Mercury-responsive fluorescent probe and preparation method thereof

A technology of fluorescent probes and synthesis methods, applied in fluorescence/phosphorescence, chemical instruments and methods, luminescent materials, etc., can solve the problems of complicated operation, complicated instruments, time-consuming, etc., and achieve good selectivity, high sensitivity, and post-processing. Simple process effect

Pending Publication Date: 2020-10-16
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of these methods are complex instruments, complex operations, difficult and time-consuming pretreatment, and are difficult to be popularized.

Method used

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  • Mercury-responsive fluorescent probe and preparation method thereof
  • Mercury-responsive fluorescent probe and preparation method thereof
  • Mercury-responsive fluorescent probe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 50 mg (0.14 mmol) of 2,5-bis(benzo[d]thiazol-2-yl)phenol and 28.3 mg (0.28 mmol) of triethylamine into the reaction flask, while adding 3 ml of dry redistilled dichloromethane as Solvent, then add 35.9 mg (0.21 mmol) of phenyl thiochloroformate under ice bath conditions and react for 0.5 h, then monitor the reaction by TLC spot plate until the reaction of the raw materials is complete, and pass the eluent according to the ratio of PE:DC=2:3 The column obtains the target product, and the productive rate is 38%, and the reaction formula is as follows:

[0020]

Embodiment 2

[0022] Add 50 mg (0.14 mmol) of 2,5-bis(benzo[d]thiazol-2-yl)phenol and 21.2 mg (0.21 mmol) of triethylamine into the reaction flask, while adding 3 ml of dry redistilled dichloromethane as Solvent, then add 35.9 mg (0.21 mmol) of phenyl thiochloroformate under ice bath conditions and react for 0.5 h, then monitor the reaction by TLC spot plate until the reaction of the raw materials is complete, and pass the eluent according to the ratio of PE:DC=2:3 Column obtains target product, and yield rate is 49%, and reaction formula is as follows:

[0023]

Embodiment 3

[0025] Add 50 mg (0.14 mmol) of 2,5-bis(benzo[d]thiazol-2-yl)phenol and 21.2 mg (0.21 mmol) of triethylamine into the reaction flask, while adding 5 ml of dry redistilled dichloromethane as Solvent, then add 35.9 mg (0.21 mmol) of phenyl thiochloroformate under ice bath conditions and react for 0.5 h, then monitor the reaction by TLC spot plate until the reaction of the raw materials is complete, and pass the eluent according to the ratio of PE:DC=2:3 Column obtains target product, and yield rate is 42%, and reaction formula is as follows:

[0026]

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Abstract

The invention discloses a preparation method and application of a ratio type divalent mercury fluorescent probe. The structural formula of the divalent mercury fluorescent probe is shown in the specification. The invention also provides a preparation method of the probe. The fluorescent probe shows blue fluorescence in a buffer solution and can carry out a specific reaction with mercuric chlorideto generate a product emitting yellow fluorescence, so that specific response to mercury is realized, and the probe also has good selectivity on divalent mercury.

Description

technical field [0001] The invention discloses a fluorescent probe capable of detecting heavy metal divalent mercury ions and its synthesis method and application, specifically relates to a fluorescent probe capable of detecting heavy metal divalent mercury ions through different emission wavelengths, belonging to chemical analysis and detection technology field. Background technique [0002] Heavy metal ions play an extremely important role in the fields of natural environment, physics and chemistry, among which mercury ion is a chemical substance with strong toxicity, which has the characteristics of persistence, easy migration and high bioaccumulation. This makes it one of the most attention-grabbing environmental pollutants in the world. It can weaken the central nervous system, cause nervous disorders, and pose certain threats to the kidneys, liver, digestive system, and hematopoietic system. Because after mercury enters the human body, it is quickly oxidized into merc...

Claims

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Application Information

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IPC IPC(8): C07D277/66C09K11/06G01N21/64
CPCC07D277/66C09K11/06C09K2211/1014C09K2211/1037G01N21/643
Inventor 郑开波王丽红
Owner CHINA THREE GORGES UNIV
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