Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene and preparation method and application thereof

A technology of quinoline amino azo group and diethoxy group, which is applied in chemical instruments and methods, fluorescence/phosphorescence, luminescent materials, etc., can solve the problems of unsatisfactory reagent sensitivity, achieve high sensitivity, stable performance, and preparation method simple effect

Inactive Publication Date: 2013-11-13
SHANXI DATONG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a 3,3'-diethoxy-4,4'-bis(8-hydroxy-5-quinoline) in order to solve the problem that the sensitivity of the reagents for detecting heavy metal zinc ions in the prior art is not ideal enough Preparation method and application of aminoazo)azobenzene

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene and preparation method and application thereof
  • 3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene and preparation method and application thereof
  • 3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1, a preparation method of 3,3'-diethoxy-4,4'-bis(8-hydroxy-5-quinolineaminoazo)azobenzene, comprising the following steps: as attached figure 1 to show

[0038] ① Acetylation of 2-ethoxy-4-nitroaniline In a 250ml round bottom flask equipped with a reflux condenser and a dropping funnel, add 60ml of glacial acetic acid and 30ml of acetic anhydride (0.31 mol), and add 2 - Ethoxy-4-nitroaniline 91.0 g (0.5 mol). Then slowly heat to reflux, then slowly add 27.2ml (0.29 mol) of acetic anhydride to the above solution dropwise, continue to reflux for 2h after the dropwise addition, and naturally cool to room temperature after the reaction is completed, add 150ml of ice water, and dissolve in sodium hydroxide neutralize, filter with suction, wash with water, and dry under an infrared lamp to obtain 101 g of the product with a yield of 90%.

[0039] ② Reduction of 2-ethoxy-4-nitroacetanilide Add 400ml of distilled water to a 1000ml round bottom flask, heat to 60°C, t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a di-triazene compound, in particular to a preparation method and an application of 3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene, which is used for solving the problem of non-ideal sensitivity of a reagent for detecting heavy metal zinc ions existing in the prior art. The molecular structural formula of the 3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene is shown in the specifications. The 3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene is characterized in that: 5-amino-8-oxychinolin and 3,3'-diethoxy-4,4'-diamido-azobenzene with fluorescent characteristics are combined together to construct a di-triazene reagent with a larger conjugated system, so that the sensitivity and fluorescent characteristic of the reagent are enhanced. The 3,3'-diethoxy-4,4'-di(8-hydroxy-5-quinoline ammonia azo)azobenzene can be used for detecting zinc ions in an alkaline medium.

Description

technical field [0001] The invention relates to a bistriazene compound, specifically a method for preparing 3,3'-diethoxy-4,4'-bis(8-hydroxy-5-quinolineaminoazo)azobenzene and its application. Background technique [0002] Triazene contains -N=N-NH- functional groups. Due to P-π conjugation, =N-H has strong acidity. Under alkaline conditions, it is easy to coordinate with transition metal ions after deprotonation, which is very good Coordinating group (J. Barker, N. D. Cameron, M. Kilner, et al., J. Chem. Soc. DationTrans[J], 1991, 12: 3435). Triazene reagent 1-(2,6-dichloro-4-nitrobenzene)-3-(4-nitrobenzene)-triazene (Zhang Xinyan, Pan Jie, Yang Minghua, etc. China Environmental Monitoring [J], 2003, 19 (2): 41-43), 1-azobenzene-3-(5-bromo-2-pyridine) triazene (Gu Yongbing, Zhang Chunniu, Zheng Yunfa. Chemical analysis and measurement [J], 2005, 14 (1): 29-31) etc. are excellent chromogens for zinc ions. Because of their high sensitivity and easy synthesis, they are wide...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07D215/38C09K11/06G01N21/64
Inventor 乔永生王艳王尚芝许琳樊月琴孟双明贾治芳
Owner SHANXI DATONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com