Organic catalyst, preparation method and application

An organic catalyst, organic technology, applied in catalytic reactions, organic chemistry, organic compounds/hydrides/coordination complex catalysts, etc., can solve problems such as limiting the development and practical use of organic catalysts, and operating process problems.

Active Publication Date: 2021-02-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above situation will inevitably bring troubles to the actual operation process. In the specific experimental operation, it is necessary to complete the accurate separate weig

Method used

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  • Organic catalyst, preparation method and application
  • Organic catalyst, preparation method and application
  • Organic catalyst, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment 1: the synthesis of catalyst B1

[0072]

[0073] In the glove box, add 0.1 mol of raw materials r1-1 (12.2g) and r1-2 (26.9g) into 100ml tetrahydrofuran, react at room temperature for 6h, drain the solvent, and wash with hexane to obtain the target Product B1, the yield is 95%.

Embodiment 2

[0074] Embodiment 2: the synthesis of catalyst B2

[0075]

[0076] In the glove box, add 0.1 mol of raw materials r2-1 (12.2g) and r2-2 (18.9g) into 100ml tetrahydrofuran, stir at room temperature for 36h, drain the solvent, and wash with hexane to obtain the target Product B2, yield 91%.

Embodiment 3

[0077] Embodiment 3: the synthesis of catalyst B3

[0078]

[0079] (1) In a glove box, add 0.1 mol of raw materials r3-1 (17.8g) and r3-2 (14.5g) into 100ml of ether, stir at room temperature for 6h, and obtain r3-3;

[0080] (2) Add 0.1mol of r3-4 (33.3g) to the above reaction solution, react at 80°C for 24h, drain the solvent, wash with hexane, and obtain the target product B3 with a yield of 90%.

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Abstract

The invention discloses an organic catalyst, a preparation method and application. The invention discloses an organic catalyst, which has any one of a compound structure shown in a formula I or a formula II, wherein and m and n are independently selected from integers of 1-50, in the formula II, h is selected from an integer of 1-100000, when h is larger than or equal to 2, n and m are independent, m can be the same or different, and n can be the same or different, X is an electrophilic reagent, and Y is a nucleophilic reagent. The organic catalyst provided by the invention is a catalyst withelectrophilic and nucleophilic double functions. The invention also discloses a preparation method of the organic catalyst. The organic catalyst provided by the invention can be used for preparing polyether, polyester, polycarbonate, polythiocarbonate, polythioether and other high polymer materials, and can effectively synthesize cyclic (thio) carbonate, lactone and other fine chemicals with highadded value.

Description

technical field [0001] The invention relates to the field of catalyst synthesis, in particular to an organic catalyst and its preparation method and application. [0002] Development and application of organocatalysts that can be used to prepare polymers and organic small molecule fine chemicals. Background technique [0003] In recent years, the use of organocatalysts in the synthesis of polymers and fine chemicals has received increasing attention. A catalytic system composed of common small organic molecules such as strong organic bases, Bronsted acids, hydrogen bond donors and acceptors. Organocatalysts have the advantages of simple synthesis, low cost, and low biological toxicity. With the understanding of organic small molecule catalysis and mechanism by scientific researchers, the application range and activity of the developed new multifunctional catalysts have been greatly improved. [0004] The most widely studied organic small molecule catalysts include carboxy...

Claims

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Application Information

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IPC IPC(8): C07F5/02C07F9/6596C07F9/572C07F9/06C07F9/6581B01J31/02B01J31/04C08F8/42C08F230/02C08G64/34C08G65/10C08G63/84C08G75/06C08G75/28
CPCB01J31/0235B01J31/0241B01J31/0264B01J31/0265B01J31/0275B01J31/0288B01J31/0291B01J31/04B01J2231/14C07F5/027C07F9/06C07F9/065C07F9/572C07F9/65815C07F9/6596C08F8/42C08G63/823C08G63/84C08G64/34C08G65/10C08G75/06C08G75/28C08F230/02
Inventor 伍广朋张瑶瑶杨贯文
Owner ZHEJIANG UNIV
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