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Method for preparing oxygen-containing organic compounds by plasma discharge

An organic compound and plasma technology, which is applied in the preparation of oxygen-containing organic compounds and plasma discharge to prepare oxygen-containing organic compounds, can solve the problem of the simple structure of N-methoxy-N-methyl group and the limitation of amide substrate functional groups Diversity, lack of three-dimensional control of the reaction, etc., to achieve the effects of reducing environmental pollution, improving cleanliness, and reducing energy consumption

Inactive Publication Date: 2016-05-04
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the Weinreb amide used in this method needs to be prepared in advance by other reactions, and the Weinreb amide has also exposed some problems in use, such as: due to the general use of organometallic reagents and Weinreb amide for ketogenic reactions, this harsh reaction condition will Limit the diversity of other functional groups in amide substrates; under individual reaction conditions, the N—O bond breakage will cause self-decomposition as a side reaction; the structure of N-methoxy-N-methyl group is too simple and lacks the ability to react Stereo control, etc.
On the other hand, there is no report on the method of directly preparing oxygen-containing organic compounds from organic compounds through discharge.

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  • Method for preparing oxygen-containing organic compounds by plasma discharge
  • Method for preparing oxygen-containing organic compounds by plasma discharge
  • Method for preparing oxygen-containing organic compounds by plasma discharge

Examples

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Embodiment 1

[0060] The research system for the preparation of oxygen-containing organic compounds by using tubular dielectric barrier reactor to produce plasma discharge is mainly composed of four parts, namely: simulated gas generation system, DBD reaction system, discharge system and product analysis system. The simulated gas generation system includes an O 2 Mass flow meter, two N 2 Mass flow meter and a liquid bubbler bottle. o 2 Accounting for 20% of the total traffic, two-way N 2 Respectively used to blow n-hexane and as a balance gas, O 2 and N 2 Mix in the mixer to form a mixed gas containing a certain concentration of n-hexane. The concentration of n-hexane in the mixed gas coming out of the mixer is controlled by the flow a of the mass flow meter MFC3, and the temperature of the n-hexane in the mixer is controlled by placing them The bubbling bottle is placed in a water bath for control, and a heating belt is used to control the heat preservation to 50°C in the delivery pip...

Embodiment 2

[0067] This example is a research system for producing oxygen-containing organic compounds by plasma discharge using a plate-type dielectric barrier reactor. Except for the plasma discharge reactor, the system structure and operation method are the same as in Example 1. The specific process flow in this example is as follows Figure 6 As shown, it is mainly composed of four parts, namely: simulated gas generation system, DBD reaction system, discharge system and product analysis system.

[0068] The simulated gas generation system includes an O 2 Mass flow meter MFC3, two N 2 Mass flow meters (MFC1 and MFC12) and a liquid bubbling bottle 2, the bubbling bottle 2 is placed in the water bath system 1, and the temperature of the water bath is 25°C. o 2 Accounting for 20% of the total traffic, two-way N 2 Respectively used to blow n-hexane and as a balance gas, O 2 and N 2 Mix in the mixer 3 to form a mixed gas containing a certain concentration of n-hexane. The concentration...

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Abstract

The invention discloses a method for preparing oxygen-containing organic compounds by plasma discharge. The method comprises the following steps: a gas mixture containing organic compounds and oxygen containing gas is sent into a plasma reactor, and the gas mixture passes through a discharge space; at the same time, a voltage is applied to an electrode pair, plasma discharge is generated between the electrode pair, and oxygen-containing organic compounds are obtained. The method is easy to operate, and other chemical reagents are not needed; energy consumption is low; waste acid treatment is not needed, energy is saved and emission is reduced, and method has high safety without and strong acid corrosivity; cleanliness of the industrial preparation reaction is improved, and environment pollution is reduced.

Description

technical field [0001] The invention relates to a method for preparing an oxygen-containing organic compound, in particular to a method for preparing an oxygen-containing organic compound by using plasma discharge, and belongs to the field of chemical synthesis. Background technique [0002] Oxygen-containing organic compounds are widely used in various fields of industrial production and life. Taking ketones as an example, ketones are often used as food flavors, solvents and organic synthesis intermediates. They can also be used to synthesize fiber oils and defoamers, to prepare surfactants, flotation agents for coal mines, and to prepare mixed solvents and Dispersant for organosol, etc. [0003] Currently, the commonly used methods for synthesizing ketones are Blaise ketone synthesis and Weinreb ketone synthesis. Blaise ketone synthesis is a method of obtaining ketones through the action of acid chlorides and organic zinc or organic copper reagents. Although this method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C45/28C07C49/04
CPCC07C45/28C07C49/04
Inventor 翁珊金旗姚水良吴祖良江博琼陆豪韩竞一唐秀娟
Owner ZHEJIANG GONGSHANG UNIVERSITY