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A kind of method of nano ruthenium catalyzed synthesis of primary amine

A technology of nanometer ruthenium and primary amines, which is applied in the fields of chemical instruments and methods, preparation of organic compounds, molecular sieve catalysts, etc., to achieve the effect of novel synthesis method, simple process and simple synthesis route

Active Publication Date: 2022-07-08
CHONGQING TECH & BUSINESS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention has simple synthesis route, novel synthesis method, simple process, high product yield and purity, cheap and easy-to-obtain catalyst, does not affect the environment, and is suitable for industrial production

Method used

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  • A kind of method of nano ruthenium catalyzed synthesis of primary amine
  • A kind of method of nano ruthenium catalyzed synthesis of primary amine
  • A kind of method of nano ruthenium catalyzed synthesis of primary amine

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Experimental program
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Effect test

Embodiment 1

[0018]

[0019] Under anaerobic conditions, 0.2 mmol of benzaldehyde, 0.0001 mmol of 0.3% nano-ruthenium / [PEG-2000-BMIM][PF 6 ] 2 , 0.1g HY zeolite molecular sieve, 10equiv ammonia water, filled with 1MPaH 2 , after stirring well, the temperature was raised to 90 o C was reacted for 5h, and the product yield was 90.0%. After the product is separated, the catalyst is dried and activated for recycling. The yields of the target product in the second to fifth cycles are 89.5%, 92.3%, 93.6%, and 91.5%, respectively.

Embodiment 2

[0021]

[0022] Under anaerobic conditions, add 0.2 mmol of benzaldehyde, 0.0001 mmol of 0.3% nano-ruthenium / [PEG-2000-BMIM][Pro] to the reactor 2 , 0.1g HY zeolite molecular sieve, 10equiv ammonia water, filled with 1MPaH 2 , after stirring well, the temperature was raised to 90 o C was reacted for 5h, and the product yield was 93.6%.

Embodiment 3

[0024]

[0025] Add 0.2 mmol p-methoxybenzaldehyde, 0.0001 mmol 0.3% nano-ruthenium / [PEG-2000-BMIM][Pro] to the reactor under anaerobic conditions 2 , 0.1g HY zeolite molecular sieve, 10equiv ammonia water, filled with 1MPaH 2 , after stirring well, the temperature was raised to 90 o C was reacted for 5h, and the product yield was 83.5%.

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Abstract

The invention discloses a method for synthesizing primary amines catalyzed by nano-ruthenium. Efficient separation of catalyst and product is achieved by temperature control. The catalyst was recycled for 5 times, and the catalytic activity and chemical selectivity were well maintained. The invention has the advantages of simple synthesis route, novel synthesis method, simple process, high product yield and purity, cheap and easy-to-obtain catalyst, no environmental impact, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for catalyzing and synthesizing primary amines with nano-ruthenium. Background technique [0002] Nitrogen-containing compounds, especially primary amines, are widely used in the synthesis of polymers, dyes, surfactants, pharmaceuticals and agrochemicals. The direct amination of aldehydes or ketones (especially those easily obtained from natural products) into primary amines using ammonia as a nitrogen source is a green and environmentally friendly method for obtaining primary amine compounds. SUMMARY OF THE INVENTION [0003] The invention provides a method for catalyzing the synthesis of primary amine by nano-ruthenium, which comprises the step of reacting an aldehyde-based compound with ammonia water and hydrogen in the presence of PEG-functionalized ionic liquid-stabilized nano-ruthenium and a HY zeolite molecular sieve catalyst to generate primary amine, and after the reaction is completed Efficient separation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C209/26C07C211/27C07C211/52C07C213/02C07C217/58C07D307/52B01J31/26B01J31/02
CPCC07C209/26C07C213/02C07D307/52B01J31/0284B01J31/0285B01J23/462B01J31/26B01J29/084B01J35/393B01J35/19C07C211/27C07C217/58C07C211/52Y02P20/584
Inventor 蒋和雁臧翠翠高雪
Owner CHONGQING TECH & BUSINESS UNIV