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A kind of preparation method of dibenzofuran

A technology for dibenzofuran and furan, applied in the field of preparation of dibenzofuran, can solve problems such as high cost, complicated preparation process, unfavorable industrial production, etc., and achieve the effects of low cost and simple preparation process

Active Publication Date: 2021-07-02
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0003] At present, the methods for preparing dibenzofuran all have the disadvantages of complicated preparation process or high cost, which is not conducive to industrial production

Method used

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  • A kind of preparation method of dibenzofuran
  • A kind of preparation method of dibenzofuran
  • A kind of preparation method of dibenzofuran

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Embodiment Construction

[0019] In order to make those skilled in the art more clearly understand the purpose, technical solutions and advantages of the invention, the invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.

[0020] A preparation method of a catalyst, using diphenyl ether as a raw material, adding iron salt, and reacting in an inert gas environment to obtain the required dibenzofuran, the reaction temperature is 200-500°C, and the reaction time is 1-4h. The preparation method has the advantages of simple process, low cost, and suitability for industrial production; and the reaction temperature is 200-500° C., which is easy to achieve in industrial production.

[0021] It can be understood that when less iron salt is added, the reaction speed is slower and the required reaction time is longer; when more iron salt is added, other impurities such as by-products and iron salt itself will be introduced instead. Preferably, the mass ratio o...

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Abstract

The invention relates to the technical field of chemical materials, and provides a method for preparing dibenzofuran. Diphenyl ether is used as a raw material to add iron salt, and the reaction is carried out under an inert gas environment to obtain the required dibenzofuran. The reaction The temperature is 200-500°C, and the reaction time is 1-4h. The preparation method is simple, low in cost and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a preparation method of dibenzofuran. Background technique [0002] Dibenzofuran is an excellent high-boiling point organic solvent, which can dissolve a variety of polymer compounds, and can also be used as raw materials for medicine, disinfectants, preservatives, fuels, synthetic resins and high-temperature lubricants, such as dibenzofuran Some of the derivatives have anti-inflammatory, analgesic, muscle-relaxing and vasodilation activities. In addition, dibenzofuran can also form a eutectic mixture with biphenyl as a heat transfer solvent. [0003] At present, the methods for preparing dibenzofuran all have the disadvantage of complicated preparation process or high cost, which is not conducive to industrial production. Contents of the invention [0004] The purpose of the present invention is to provide a preparation method of dibenzofuran, which is simple, low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/91
CPCC07D307/91
Inventor 黄伟刘建伟张乾梁丽彤
Owner TAIYUAN UNIV OF TECH
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