Preparation method of functional glycosyl ionic liquid

A technology of functional sugars and ionic liquids, applied in the preparation of sugar derivatives, chemical instruments and methods, sugar derivatives, etc., can solve the problems of easy pollution of the environment and poor performance of ionic liquids, and achieve high sustainability and thermal stability sex-enhancing effect

Active Publication Date: 2021-05-11
YUNNAN UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the prior art prepares ionic body liquids to easily pollute the environment and has poor performance. The present invention provides a method for preparing a functional sugar-based ionic liquid that solves the above problems

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 method of functional glycosyl ionic liquid
  • Preparation method of functional glycosyl ionic liquid
  • Preparation method of functional glycosyl ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing a functional glycosyl ionic liquid provided in this embodiment is characterized in that it comprises the following steps:

[0030] Step 1: Put glucose and N,N-dimethylacetamide after dehydration into the reactor, the amount of glucose added is 0.1mol, the amount of N,N-dimethylacetamide added is 200ml, in 0 Stir under the condition of ℃, after the glucose dissolves to form a homogeneous solution, add zinc acetate catalyst, the mass of the added zinc acetate catalyst is 0.19g, and then use the dropping funnel to evenly drop 0.1mol of thionyl chloride to the reaction within 2h In the kettle, stir and keep warm at 0°C for 3h, then raise the temperature to 80°C, continue to keep warm for 8h, then cool to normal temperature to obtain a monochloroglucose solution, namely solution A

[0031]Step 2: Add the imidazole powder to the monochloride-substituted glucose solution in step 1, i.e. solution A, the amount of imidazole powder added is 0.04 mol, stir a...

Embodiment 2

[0034] A method for preparing a functional glycosyl ionic liquid provided in this embodiment is characterized in that it comprises the following steps:

[0035] Step 1: Put sucrose and dehydrated N-methylpyrrolidone into the reaction kettle, the amount of sucrose added is 0.1mol, the amount of N,N-dimethylacetamide added is 400ml, and stirred at 5°C , after the sucrose is dissolved to form a homogeneous solution, add N,N-dimethylformamide catalyst, the quality of the added N,N-dimethylformamide catalyst is 6.84g, then use the dropping funnel to distill 0.15mol of dibromo Add sulfoxide evenly into the reaction kettle dropwise within 4 hours, stir and keep warm at 5°C for 3 hours, then raise the temperature to 100°C, continue to keep warm for 12 hours, and cool to room temperature to obtain a monobromine-substituted sucrose solution, namely solution A

[0036] Step 2: Add 4,5-dimethylol-2-phenylimidazole powder to the monobrominated sucrose solution in step 1, solution A, the am...

Embodiment 3

[0039] A method for preparing a functional glycosyl ionic liquid provided in this embodiment is characterized in that it comprises the following steps:

[0040] Step 1: put raffinose and dehydrated N,N-dimethylformamide into the reactor, the amount of raffinose added is 0.1mol, and the amount of N,N-dimethylformamide added is 300ml, stir at 2°C, after the raffinose dissolves to form a homogeneous solution, add a zinc oxide catalyst, the quality of the added zinc oxide catalyst is 7.5g, and then use a dropping funnel to dissolve 0.12mol of phosphorus tribromide in 3h Add it dropwise evenly into the reaction kettle, stir and keep warm at 2°C for 3 hours, then raise the temperature to 90°C, continue to keep warm for 10 hours, and cool to room temperature to obtain a monobrominated raffinose solution, namely solution A

[0041] Step 2: Add 4,5-dicarboxyimidazole powder to the monobromo-substituted raffinose solution in step 1, i.e. solution A, the amount of 4,5-dicarboxyimidazole ...

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 functional glycosyl ionic liquid, and solves the problems of easy environment pollution and poor performance in the existing preparation. The preparation method comprises the following steps of 1, feeding a micromolecular saccharide compound and a polar solvent into a reaction kettle; adding a halogenation reaction catalyst, wherein the mass ratio of the added halogenation reaction catalyst to the micromolecular saccharide compound is 1 percent to 2 percent; then, dripping a halogenating agent; performing heat insulation for 2.5h to 3.5h; raising the temperature to 80 to 100 DEG C; continuously performing heat insulation for 8h to 12h; performing cooling to obtain a solution A; 2, adding the solution A into an imidazole derivative; performing stirring and heat insulation for 12h to 24h at 80 to 120 DEG C; performing cooling to obtain a solution B; and 3, adding the solution B into the halogenating agent; performing heat insulation for 2.5h to 3.5h; raising the temperature to 80 to 100 DEG C; performing heat insulation for 8h to 12h; performing evaporation to remove the halogenating agent and the polar solvent; performing washing and drying; and completing the preparation. The preparation method has the advantages of green and environment-friendly effects and the like.

Description

technical field [0001] The invention relates to the field of ionic liquid organic compounds, in particular to a preparation method of a functional sugar-based ionic liquid. Background technique [0002] In the past two decades, people's awareness of resource conservation and environmental protection has increased significantly, and the human world has also devoted more and more energy to mining and developing green and sustainable biomacromolecular materials. Among them, polysaccharide compounds, such as cellulose, hemicellulose and starch, are considered to be the most promising green and sustainable packaging materials. Such polysaccharide materials have been sought for many years as a replacement for traditional fossil fuel-based polymers. Unfortunately, there are strong intramolecular and intermolecular hydrogen bonds in this kind of natural polysaccharide macromolecular materials, which makes it difficult to dissolve in common solvents, let alone obtain polysaccharides...

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 Applications(China)
IPC IPC(8): C07H1/00C07H19/052
CPCC07H1/00C07H19/052Y02P20/54
Inventor 王继亮包黎霞李天师康怡阳鲁婉莹
Owner YUNNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap