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A kind of synthetic method of triisopropyl chlorosilane

A technology of triisopropyl silane and propyl chlorosilane, which is applied in the field of chemical synthesis technology of triisopropyl chlorosilane, can solve the problems of difficulty in obtaining triisopropyl chlorosilane, many side reactions, etc. The effect of industrialization promotion, high product yield and easy control

Active Publication Date: 2016-01-06
扬州三友合成化工有限公司
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Problems solved by technology

See (Li Wenhai, Kan Zigui, Huangshan. A synthetic method of triisopropylchlorosilane. Guangdong Chemical Industry, the method for producing triorgano-monochlorosilane CN1867221A), but this method has many side reactions, and it is difficult to obtain high Purity triisopropylchlorosilane

Method used

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  • A kind of synthetic method of triisopropyl chlorosilane
  • A kind of synthetic method of triisopropyl chlorosilane
  • A kind of synthetic method of triisopropyl chlorosilane

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Embodiment Construction

[0021] Step 1: Preparation of Triisopropylsilanol

[0022] In a 500ml four-neck flask equipped with a stirrer, a thermometer, and a condenser tube, add 158.3g (1mol) of triisopropylsilane and 0.1 to 50% of a catalyst (iodine or bromine or metal halide MX or hydrogen halide One, X is Cl, Br or I), under nitrogen protection, add 68g (1mol) of hydrogen peroxide with a concentration of 50% dropwise at 70-110°C for about 4 hours, keep warm at 70-110°C for 2 hours, then cool down After reaching room temperature, let stand for 1 hour, and separate the water phase to obtain 174 g of triisopropylsilanol. Analysis of the product by gas chromatography showed a content of 99.5%.

[0023] This step reaction formula is as follows:

[0024]

[0025] The above hydrogen peroxide can be replaced by one of peracetic acid, potassium ferrate, potassium chlorate, sodium chlorate, sodium hypochlorite or more than one mixed oxidant.

[0026] The reaction mechanism of catalyzer is as follows (ta...

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Abstract

The invention relates to a high-strength triisopropyl chlorosilane synthesis method, and relates to the technical field of triisopropyl chlorosilane chemical synthesis. According to the invention, triisopropyl silane is subjected to a reaction with an oxidant, such that triisopropyl silanol is prepared, wherein the oxidant is at least any one selected from hydrogen peroxide, peracetic acid, potassium ferrate, potassium chlorate, sodium chlorate, sodium hypochlorite or potassium permanganate; triisopropyl silanol and hydrogen chloride gas are adopted as raw materials, and triisopropyl chlorosilane is prepared under a temperature condition of -5 DEG C to 5 DEG C. According to the invention, triisopropyl silanol is prepared by using triisopropyl silane and the oxidant. Triisopropyl silane can be quantitatively oxidized, no side reaction is caused, and the yield can reach 100%. The chlorination process is carried out under low temperature. Once hydrogen chloride delivery amount is controlled, triisopropyl chlorosilane hydrolysis can be effectively inhibited, and a yield can be higher than 99%.

Description

technical field [0001] The invention relates to a chemical synthesis method, in particular to a chemical synthesis process of triisopropylchlorosilane silane. Background technique [0002] Triisopropyl chlorosilane is an important steric hindrance type organosilicon protective agent, which is mainly used to protect various types of hydroxyl groups, especially in multifunctional hydroxyl compounds, which can be selectively protected and deprotected. It is very important to synthesize nucleosides, nucleotides and sugar compounds; it is also possible to synthesize coatings that can hardly cause capillary cracks and other coating defects even if they are immersed in seawater for a long time, and can prevent or inhibit mucus adhesion, have excellent water resistance and A raw material for an antifouling paint composition that can effectively produce a coating film with an antifouling effect over a long period of time, which reduces the content of volatile organic compounds (VOC) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/12
Inventor 李辉宁魏开举孙健张众笑
Owner 扬州三友合成化工有限公司
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