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Organogel compound of 4-nitrophenylthiourea, and preparation method, gel and applications of organogel compound

A technology of nitrophenylthiourea and organogel, which is applied in the field of supramolecular chemistry and can solve the problems of few reports on mercury ion detection methods

Inactive Publication Date: 2017-08-18
XINYANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few reports on the detection methods for identifying mercury ions with naked eyes.

Method used

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  • Organogel compound of 4-nitrophenylthiourea, and preparation method, gel and applications of organogel compound
  • Organogel compound of 4-nitrophenylthiourea, and preparation method, gel and applications of organogel compound
  • Organogel compound of 4-nitrophenylthiourea, and preparation method, gel and applications of organogel compound

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Experimental program
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Embodiment

[0035] As shown in Figure 6, the synthesis process of compound P-12 is as follows: compound p-nitrophenylisothiocyanate (0.50 g, 2.78 mmol), N-(2-aminoethyl)-3,4,5- Tris(dodecyl)benzamide (1.99 g, 2.78 mmol) was added to anhydrous tetrahydrofuran (60 mL), and stirred under reflux for 12 hours. The reaction was monitored by thin-layer chromatography, and after the reaction was completed, tetrahydrofuran was distilled off under reduced pressure to obtain a crude product. The crude product was purified by column chromatography (Methanol / CHCl 2 =1 / 30, v / v) to obtain a pale yellow solid. 1 HNMR (600 MHz, CDCl 3): 8.854 (s, 1H), 8.176 (d, 2H, J =9.0 Hz), 7.898 (s, 1H ), 7.633 (s, 2H), 7.326 (s, 1H), 6.970 (s, 2H ), 3.993 (t, 4H, J = 6.3 Hz), 3.924 (t, 4H, J = 6.3 Hz), 3.633 (s, 2H), 1.774 (m, 6H), 1.479 (m, 6H), 1.325-1.250 (m, 48H), 0.879 (t, 9H, J = 6.9 Hz), 13 CNMR (100MHz, CDCl 3 ): 169.39, 153.30, 143.97, 141.58, 127.67, 124.70, 122.20, 105.56,73.70, 69.47, 41.35, 31.94, ...

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Abstract

The invention discloses an organogel compound of 4-nitrophenylthiourea. The compound is 1-(2-(3,4,5-tri(dodecyl) benzamido)ethyl)-3-(4-nitrobenzene)thiourea taking (p-nitrophenyl)thiourea as a chromophore, the structural formula is as shown in the specification, and the molecular formula is respectively [4-NO2C6H4N2H2S-C2H4NHCOC6H2-(OC12H25)3]. The gel factor has the function of sensitively detecting fluorine ions and mercury ions, the color of the solution state of the gel factor is changed by adding the fluorine ions, and ring closing reaction is generated and the color of the solution state of the gel factor is changed again by adding the mercury ions; and the gel system has sensitive effects on the fluorine ions and mercury ions in a good state. By utilizing the property, the sensitive detection of the gel system on the fluorine ions and mercury ions can be realized.

Description

technical field [0001] The invention belongs to the technical field of supramolecular chemistry, and specifically relates to an organogel compound based on p-nitrothiourea derivatives, an organogel obtained from the gel compound and applications thereof. Background technique [0002] Fluorine is one of the essential elements for the human body, and lack of fluorine is prone to molar disease. The appropriate concentration of fluoride ions in drinking water is 0.5-1.0mg L -1 . But if the content is too high, it will be poisonous. When drinking for a long time, the fluoride content is as high as 1-1.5 mg L -1 When the water is too high, it is prone to spot tooth disease, such as the fluoride content in the water is higher than 4 mg L -1 , Deform human bones, cause skeletal fluorosis and damage the kidneys. The toxic effects of fluoride in plants are mainly due to the fact that fluorine can replace metal elements in enzyme proteins to form complexes or complex with calcium i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C335/16C09K9/02B01J13/00G01N21/78
CPCB01J13/0065C07C335/16C09K9/02C09K2211/1014G01N21/78G01N2021/755
Inventor 曹新华高爱萍黑笑涵高彦伟赵娜
Owner XINYANG NORMAL UNIVERSITY
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