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Triphenylene anion recognition acceptor containing 4-methylthiosemicarbazide Schiff base side chain and its application

A technology of methylthiosemicarbazide and anion recognition, applied in the field of anion recognition

Active Publication Date: 2017-10-13
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Anion recognition chemistry was proposed as early as 1967, but in terms of receptor design, among the thiourea receptors studied by previous researchers, there is no anion receptor that introduces a triphenylene derivative with an enlarged conjugated system. Literature report

Method used

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  • Triphenylene anion recognition acceptor containing 4-methylthiosemicarbazide Schiff base side chain and its application
  • Triphenylene anion recognition acceptor containing 4-methylthiosemicarbazide Schiff base side chain and its application

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Embodiment

[0019]The specific steps for preparing the triphenanthrene anion recognition receptor containing 4-methylthiosemicarbazide Schiff base side chain are:

[0020] (1) Synthesis of dihexyloxyphenol: Measure 30 mL of absolute ethanol into a 50 mL three-neck flask, and put it into a clean magnet. Potassium iodide (0.249g, 0.0015mol), 1-bromo-n-hexane (5.9g, 0.036mol), and catechol (3.3g, 0.030mol) were successively weighed into a three-necked flask, and the magnetic stirrer was turned on to stir and dissolve. After the catechol is completely dissolved, weigh anhydrous potassium carbonate (4.55g, 0.033mol) and slowly add it into the above-mentioned three-necked flask under stirring conditions. After adding the anhydrous potassium carbonate, protect the device with nitrogen, and then Stir at room temperature for 1 hour. The temperature of the oil bath was controlled at 80 °C and heated to reflux. After reacting for 12 hours, the heating was stopped and cooled to room temperature, an...

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Abstract

The invention discloses a 4-methylthiosemicarbazone schiff base side chain-containing benzophenanthrene anion recognition receptor and application. A structural formula of the 4-methylthiosemicarbazone schiff base side chain-containing benzophenanthrene anion recognition receptor is shown in the description; the 4-methylthiosemicarbazone schiff base side chain-containing benzophenanthrene anion recognition receptor is applied to selective recognition of anions F<->, CH3COO<-> and H2PO4<->. The receptor has the advantages that in a thiourea receptor, a benzophenanthrene ramification with larger conjugated system is introduced as a signal report unit, thus ensuring that the thiourea as a hydrogen bond receptor can provide two NH protons, can be combined with the anion in a manner of double hydrogen bonds and has a larger binding constant Kass.

Description

technical field [0001] The invention belongs to the technical field of anion recognition, in particular to a triphenanthrene anion recognition receptor containing a 4-methylthiosemicarbazide Schiff base side chain and its application. Background technique [0002] Anions are ubiquitous in nature. For example, DNA, enzymes, polypeptides, amino acids, etc. in organisms are mostly anions. Humans also produce a large number of anions in the process of life, agricultural production, and industrial production. Inorganic anions include carboxylate ions and phosphate ions in living organisms, a large number of chloride ions in the ocean, nitrate ions and sulfate ions in acid rain, anions in chemical science, biological science, catalytic science, environmental science, It plays a very important role in the fields of medical science and other fields. For example, anions can carry the genetic information of organisms, DNA is a polyanion species, and most enzymes are anion species. P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C381/08G01N21/78
Inventor 刘峥魏席郭征楠李佩峰
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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