A device for continuously preparing organosilicon monomers containing special groups and a preparation method using the device

Abstract

The invention discloses a device for continuously preparing an organic silicon monomer containing special groups and a preparation method using the device. The preparation method of the organic silicon monomer containing the special groups is adopted for synthesizing the organic silicon monomer by using a Grignard synthesis principle and a non-catalytic one-step method. The Grignard synthesis principle is a most effect synthesis method for synthesizing the organic silicon monomer, and almost various groups can be connected to silicon atoms by using Grignard compounds. Based on the consideration that the substitution reaction can be performed for once, twice, three times and four times, and the organic groups can be different, multiple organic silicon monomers can be synthesized by using a Grignard synthesis method, and the device is particularly significant for organic silicon monomers which cannot be synthesized by using other methods and which contains the special groups.

Description

technical field [0001] The invention belongs to the technical field of chemical raw material preparation, and in particular relates to a device for continuously preparing organosilicon monomers containing special groups and a preparation method using the device. Background technique [0002] At present, the Grignard synthesis method commonly used at home and abroad to produce organosilicon monomers has advantages and disadvantages as follows. Classes, alkynes) etc. are introduced onto silicon atoms to prepare special organosilicon monomers, and mixed hydrocarbyl silanes with different organic groups attached to one silicon atom can also be produced, which can by-produce metal salts; the disadvantage is: the reaction It is necessary to use a large amount of flammable ether or other solvents, which not only consumes a lot, but also is flammable and explosive, and the production is unsafe; the process steps are many and complicated; the raw material Grignard reagent is expensiv...

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Problems solved by technology

[0002] At present, the Grignard synthesis method commonly used at home and abroad to produce organosilicon monomers has advantages and disadvantages as follows. Classes, alkynes) etc. are introduced onto silicon atoms to prepare special organosilicon monomers, and mixed hydrocarbyl silanes with different organic groups attached to one silicon atom can also be produced, which can by-produce metal salts; the disadvantage is: the reaction When it is necessary to use a large amount of flammable ether or other solvents, not only the consumption is large, but also flammable and explosive, and the production is unsafe; the process steps are many and complicated; the raw material Grignard reagent is expensive and costly, and it is not suitable for large-scale industrial production

[0007] To sum up, it can be seen that the existing technology of Grignard synthesis in industrialization has not been well resolved, and its preparation method has potential safety hazards, high preparation costs, and inability to continue production. It cannot meet the requirements of low cost and high safety. Industrial production requirements such as the production of high-purity silicone monomers containing special groups by the Grignard method

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