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

Preparation of chiral covalent organic framework materials with l-menthol as chiral source

A covalent organic framework and menthol technology, applied in other chemical processes, chemical instruments and methods, etc., can solve environmental pollution and other problems, and achieve high efficiency and low energy consumption

Active Publication Date: 2021-08-31
QIQIHAR UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural chiral substances are rare in nature. Existing technologies and traditional techniques are likely to cause serious pollution to the environment. Therefore, the preparation of a new type of porous material that can be used for chiral resolution has important scientific significance. and research value

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
  • Preparation of chiral covalent organic framework materials with l-menthol as chiral source
  • Preparation of chiral covalent organic framework materials with l-menthol as chiral source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with examples. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.

[0016] The concrete implementation of the present invention is as follows: take L-menthol as the preparation method of the chiral covalent organic skeleton of chiral source, the steps of described method are as follows:

[0017] (1) Under nitrogen protection, inject thionyl chloride (13.5mL) into a three-necked bottle filled with 2,5-dibromobenzoic acid (3.00g, 9.26mmol), heat to 75°C in an oil bath and stir to react After 4 hours, the compound obtained by rotary evaporation was 2,5-dibenzoyl chloride;

[0018] (2) Under nitrogen protection, inject L-menthol (2.89g, 18.5mmol) into a three-necked bottle filled with 2,5-dibromobenzoyl chloride (1.69g, 8...

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 discloses a preparation method of a chiral covalent organic framework with L-menthol as a chiral source: using thionyl chloride, 2,5-dibromobenzoic acid and L-menthol as raw materials, and toluene as Solvent, through a two-step organic synthesis reaction, synthesize white crystal A; with 1,3,5-tribromobenzene, Pd(PPh 3 ) 2 Cl 2 , CuI, PPh 3 and trimethylsilylacetylene as raw materials, compound B is synthesized through a two-step reaction; A, B, Pd(PPh 3 ) 2 Cl 2 、PPh 3 , CuI was added into a three-necked flask, injected with triethylamine, and reacted at 90°C for 18 hours. The crude product was purified to obtain a brown solid, which was a chiral covalent organic framework material. The covalent organic framework material with L-menthol as a chiral source obtained in the present invention has a unique chiral structure and tubular shape, and can be used as a material for chiral resolution.

Description

technical field [0001] The invention belongs to the field of polymer materials and engineering, and in particular relates to a preparation method of a chiral covalent organic framework using L-menthol as a chiral source. Background technique [0002] Chiral resolution is of great significance, and isomers with different optical activity often have significant differences in their properties. However, natural chiral substances are rare in nature. Existing technologies and traditional techniques are likely to cause serious pollution to the environment. Therefore, the preparation of a new type of porous material that can be used for chiral resolution has important scientific significance. and research value. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a covalent organic framework with L-menthol as a chiral source, which contains a chiral structure and has a unique tubular shape. The polymer can be used for chir...

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): C08G83/00B01J20/22
CPCB01J20/226C08G83/008
Inventor 徐亮藏雨荆博宇雷天阳吴云峰黄媛贾宏葛
Owner QIQIHAR UNIVERSITY
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