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Diacetone acrylic amide type ionic liquid and preparation thereof

A technology of diacetone acrylamide type and acetone acrylamide type, which is applied in the field of new chemical materials and their preparation, can solve the problems of difficult preparation, pollution, high cost, etc., and achieve the effect of low preparation cost, simple preparation and cheap price

Inactive Publication Date: 2002-12-18
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the different combinations between these cations and anions, ionic liquids with different characteristics are formulated, but the diacetone acrylamide ionic liquid involved in the present invention has not been reported so far, and its preparation method is also mentioned for the first time in the present invention. There are also some disadvantages in the preparation of ionic liquids: raw materials are scarce, and the cost is higher, generally more than 2 times that of commonly used organic solvents; preparation is difficult, product purification is difficult, and it is not suitable for large-scale industrial production applications; usually with trichloro The combination of aluminum and aluminum is likely to cause pollution and affect its application in green chemical industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Trifluoroacetate ionic liquid of diacetone acrylamide

[0016] In a small glass beaker equipped with magnetic stirring, add 10 grams (0.059 mol) of diacetone acrylamide with a purity of 98%, and then add 40% CF while stirring 3 30ml of COOH solution, continue to stir after the addition, react for about 10 minutes, stand still for layering, separate the lower organic phase with a separatory funnel, which is the trifluoroacetate ionic liquid of diacetone acrylamide. The reaction temperature was 23°C at room temperature, and the yield was 95%. The reaction formula is:

Embodiment 2

[0017] Example 2: Diacetone acrylamide sulfate ionic liquid

[0018] In a small glass beaker equipped with magnetic stirring, add 3.0 g (0.018 mol) of diacetone acrylamide, and then slowly add 3 ml, 98% H 2 SO 4 After the dropwise addition is completed, the reaction is continued for 26 hours. After the reaction is completed, suction filtration is performed, and the filtered solid substance is the sulfate ionic liquid of diacetone acrylamide. The reaction temperature is room temperature 23°C. Yield: 70%. The reaction formula is:

Embodiment 3

[0019] Example 3: Acetate ionic liquid of diacetone acrylamide

[0020] In a small glass beaker equipped with magnetic stirring, add 15 grams (0.089mol) of diacetone acrylamide, and then add 60ml, 99% glacial acetic acid to it, stir and react for 24 hours, place in the refrigerator to condense, and then quickly Suction filtration, take the filtered solid is the product. The reaction temperature is room temperature, and the yield is 90%. The reaction formula is:

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PUM

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Abstract

The present invention relates to a new type diacetone acryloamide type ionic liquid and its preparation method. It is made up by using diacetone acryloamide and respectively making it and sulfuric acid, hydrochloric acid, acetic acid, trifluoroacetic acid, tetrafluoroboric acid or phosphofluoric acid undergo the processes of acid and alkali neutralization and separation. Said invention is low in cost, simple in preparation, has no secondary pollution and is suitable for industrial production and application.

Description

Technical field [0001] The invention relates to an ionic liquid and a preparation method thereof, in particular to a novel diacetone acrylamide type ionic liquid and a preparation method of the ionic liquid, belonging to the technical field of novel chemical materials and preparation thereof. Background technique [0002] In recent years, ionic liquids have attracted widespread attention as green solvents or catalysts. They are commonly used in organic synthesis, chemical separation, electrochemistry and other chemical reactions. They have the dual function of solvent and catalyst. Li Ruxiong and others mentioned in the article "Synthesis and Application of Ionic Liquids" in "Chemical Reagents", 2001, 23(4), pages 211-215, that there are currently four types of cations in ionic liquids: alkyl quaternary ammonium ions, Alkyl quaternary phosphonium ion, alkyl substituted imidazolium ion, alkyl substituted pyridinium ion; the anion mainly includes Cl - , Br - , BF...

Claims

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Application Information

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IPC IPC(8): B01J31/02C07C235/80
Inventor 单永奎戴立益蔡清海何鸣元
Owner EAST CHINA NORMAL UNIV
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