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Pillar[5]arene and 2-hydroxy-3-naphthoic acid complex and preparation thereof and application in detecting iron ions and fluorine ions

A technology of naphthoic acid and complexes, applied in the field of column 5 arene/2-hydroxyl-3-naphthoic acid complexes

Inactive Publication Date: 2016-07-13
NORTHWEST NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Once a person with fluorosis suffers from it, he will become ill forever, and drugs can only slow down the aggravation of the disease

Method used

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  • Pillar[5]arene and 2-hydroxy-3-naphthoic acid complex and preparation thereof and application in detecting iron ions and fluorine ions
  • Pillar[5]arene and 2-hydroxy-3-naphthoic acid complex and preparation thereof and application in detecting iron ions and fluorine ions
  • Pillar[5]arene and 2-hydroxy-3-naphthoic acid complex and preparation thereof and application in detecting iron ions and fluorine ions

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Embodiment Construction

[0032] The structure, synthesis, and application for detecting iron ions and fluoride ions in the water phase of the complex of the present invention will be further described through specific examples.

[0033] 1. Synthesis of Copolymerized Pillar 5 Aromatics

[0034] Synthesis of intermediates: hydroquinone (2.2g, 20.0mmol), K 2 CO 3 (13.8g, 100mmol), KI (0.83g, 5mmol), 1,4 dibromobutane (17.28g, 80mmol) and acetone (300.0mL) were added in a 500mL round-bottomed flask, stirred and reacted for 3 days (72h ), the solid precipitated to obtain intermediate 1. 1 HNMR (400MHz, CDCl 3 ) δ (ppm): δ6.81(s,4H),3.94(dd, J =10.0,5.8Hz,4H),3.48(t, J =6.6Hz,2H),3.26(t, J =6.8Hz, 2H), 2.09-1.85(m, 8H). The yield was 80%.

[0035] Synthesis of Intermediate 2: The intermediate (3.8g, 10.0mmol) was dissolved in 80mL of 1,2-dichloroethane; then paraformaldehyde (0.686g, 20.0mmol), boron trifluoride diethyl ether (0.686g , 20.0mmol) was added to the solution, and the reaction was sti...

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Abstract

The invention provides a pillar[5]arene and 2-hydroxy-3-naphthoic acid complex.Copolymerized pillar[5]arene serves as a subject, 2-hydroxy-3-naphthoic acid serves as an object, C-H......pi and electrostatic attraction serve as driving force, partial 2-hydroxy-3-naphthoic acid provided with negative charges is included into a cavity of pillararene in an alkaline environment, the assembling process of the subject and the object is completed, and the stable pillar[5]arene and 2-hydroxy-3-naphthoic acid complex is formed.Iron ions are added to an alkaline aqueous solution of the complex, and the subject and the object are subjected to fluorescence quenching; fluorine ions are added, a complex is formed by the fluorine ions and the iron ions, so that the iron ions are separated from the cavity of copolymerized pillar[5]arene, and molecular fluorescence of the complex is reopened.Therefore, Fe<3+> can be determined through the pillar[5]arene and 2-hydroxy-3-naphthoic acid complex, and F<-> can be continuously identified through fluorescence quenching of the solution.

Description

technical field [0001] The invention relates to a pillar 5 arene / 2-hydroxy-3-naphthoic acid complex; the invention also relates to the application of the complex in continuous detection of iron ions and fluorine ions, belonging to the technical field of ion detection. Background technique [0002] Iron is one of the essential elements that make up the human body. Iron deficiency will affect the health and development of the human body. The biggest impact is iron deficiency anemia. However, once iron is absorbed by the body, there are few other ways of excretion except that part is lost with blood loss. Excess iron in the body is stored in the form of ferritin, and excess iron stores increase the risk of heart disease. Studies have found that the combination and separation of hemoglobin and oxygen are closely related to iron. Too much iron will promote the increase of oxygen free radicals, and oxygen free radicals have a significant superoxidation effect on the body. Too muc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/18C07C43/205C07C65/11C07C51/347C09K11/06G01N21/64
CPCC07C41/18C07C51/347C09K11/06C09K2211/1007C09K2211/1011G01N21/6428C07C43/205C07C65/11
Inventor 林奇郑峰程晓斌张有明魏太保
Owner NORTHWEST NORMAL UNIVERSITY
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