Method for synthesizing amine, alcohol, olefin and alkane through catalytic reduction by using supported gold

A supported, synthetic amine technology, applied in the synthesis of olefins and alkanes, amines, supported gold catalytic reduction synthesis of amines, alcohols, olefins and alkanes, can solve the problems of expensive reducing agents, equipment wear, high equipment requirements, etc., to achieve Significant practical value in industrial production, good selectivity, easy separation and recycling effect

Inactive Publication Date: 2011-06-08
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are the following defects and deficiencies in the reduction methods disclosed in the prior art: in method 1), there are many waste residues, strong corrosion, and serious equipment wear; in method 2), the main defect is that the reducing agent is expensive, and in method 3), the The source of hydrogen is limited, the safety is low, and it is generally carried out under high pressure, which requires high equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1mmol nitrobenzene, 0.05g 1.5%wt Au / ZrO 2 Catalyst, 7 equivalents of ammonium formate, 10mL of ethanol, and then replace the air in the autoclave with nitrogen, raise the internal temperature of the autoclave to 30°C, feed 0.5MPa nitrogen, stir for 12h, and use gas chromatography to analyze the results. Nitrobenzene is converted to aniline The conversion rate is 99.8%, and the selectivity is 99%.

Embodiment 2

[0027] 1mmol nitrotoluene, 0.05g 1.5%wtAu / TiO were charged into a stainless steel autoclave with a capacity of 100mL 2 Catalyst, 5 equivalents of potassium formate, 10 mL of ethanol, and then replace the air in the autoclave with nitrogen, raise the internal temperature of the autoclave to 30 ° C, feed 0.5 MPa helium, stir for 20 h, and analyze the results of nitrotoluene with gas chromatography. The conversion rate of p-aminotoluene is 99.8%, and the selectivity is 99%.

Embodiment 3

[0029] 1mmol p-chloronitrobenzene, 0.05g 1.5%wtAu / CeO were charged into a 100mL stainless steel autoclave 2 Catalyst, 5 equivalents of ammonium formate, 10mL of ethanol, and after replacing the air in the autoclave with nitrogen, the internal temperature of the autoclave was raised to 30°C, 0.5MPa argon was introduced, stirred for 14h, and the results were analyzed by gas chromatography. p-Chloronitrobenzene The conversion into p-chloroaniline was 98%, and the selectivity was 99%.

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PUM

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Abstract

The invention belongs to the field of chemical synthesis, and in particular relates to a method for synthesizing amine, alcohol, olefin and alkane through catalytic reduction by using supported gold. In the method, a nitro-compound, aldehyde ketone, alkyne and an olefin compound are taken as substrates, the supported gold is taken as a catalyst, formic acid and salt thereof are taken as a hydrogen transfer agent, and amine, alcohol, olefin and alkane compounds are prepared by catalyzing hydrogen transfer reaction through the supported gold catalyst at the temperature of between 30 and 80 DEG C under the protection of inert gas. The supported catalyst used in the method has the advantage that the supported catalyst is easy to separate and recycle; by the method, satisfying reaction speed and conversion rate can be achieved; and the method has high selectivity and obvious industrial production practical value.

Description

technical field [0001] The invention belongs to the field of chemical synthesis and relates to synthesis methods of amines, alcohols, olefins and alkanes. It specifically relates to a method for synthesizing amines, alcohols, olefins and alkanes through catalytic reduction of supported gold. Background technique [0002] The reduction reactions of nitro compounds, aldehydes, ketones, alkynes and alkenes to corresponding amines, alcohols, alkenes and alkanes are very important both from the perspective of industrial application and laboratory research. In particular, it has extremely broad applications in the fields of medicine, dyes, pesticides, liquid crystal materials, and rubber. [0003] The reduction methods disclosed in the prior art mainly include: 1) active metal reduction method (such as iron powder, zinc powder, tin particles, etc.); 2) metal hydride reduction (such as sodium borohydride, lithium tetrahydrogen, etc.); 3) Catalytic hydrogenation reduction method (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C209/32C07C29/143C07C5/09C07C5/03C07C211/46C07C211/47C07C211/52C07C211/03C07C15/46C07C15/073C07C33/22C07C33/46C07D215/38
Inventor 曹勇娄夏冰何林
Owner FUDAN UNIV
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