Efficient anti-poisoning Karstedt catalyst and synthesis and application in hydrosilylation reaction

A hydrosilylation reaction and catalyst technology, applied in catalytic reactions, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of low yield, increased platinum consumption, and increased production Cost and other issues, to achieve the effect of improving activity and stability, reducing the amount of Pt usage, and saving costs
CN106582846AInactive Publication Date: 2017-04-26NANCHANG UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANCHANG UNIV
Publication Date
2017-04-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed are an efficient anti-poisoning Karstedt catalyst and synthesis and application in hydrosilylation reaction. Certain-proportion trialkylboron and a derivative thereof are added into a classical Karstedt catalyst, backflow is conducted in solvent at certain temperature for certain time, and the Karstedt catalyst with high activity and high anti-poisoning performance is obtained. The efficient anti-poisoning Karstedt catalyst can be applied to additivity liquid liquid silicone rubber, silica gel ink, silane coupling agent synthesis, hydrogen-containing silane, olefin and other hydrosilylation reactions. According to the efficient anti-poisoning Karstedt catalyst and synthesis and application in hydrosilylation reaction, the activity of the classical Karstedt catalyst and the anti-poisoning performance of the Karstedt catalyst under relatively high (halogen, phosphorus, sulfur and the like) concentration are improved greatly, the usage quantity of the catalyst is high (by Pt), and the economy is good. The hydrosilylation efficiency is high, and the reaction condition is mild. The influence on the finished product appearance is low, and the defective rate is low. The efficient anti-poisoning Karstedt catalyst and synthesis and application in the hydrosilylation reaction can be widely applied to organosilicone monomers and organosilicone polymers.
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Description

technical field

[0001] The invention relates to the synthesis and application of organosilicon catalyst, and relates to the synthesis of catalyst and its application in hydrosilylation reaction.

[0002] technical background

[0003] The hydrosilylation reaction is one of the most important reactions in the synthesis of organosilicon monomers and polymers. It is an addition reaction of hydrosilane and unsaturated bond compounds under the action of metal catalysts. Catalysts play a vital role in this. Since 1947 Sommer et al. ( J. Am. Chem. Soc., 1947,69:188 ) since the discovery of this reaction, hydrosilylation catalysts have been continuously evolving. Specifically, from 1947 to 1957, the main reason is that potassium chloroplatinate and chloroplatinic acid are less active as catalysts ( French, 961816[P], 1949; USA, 2632013[P], 1953; USA, 2637738[P], 1953. ), in 1957 Speier found that dissolving chloroplatinic acid in isopropanol as a catalyst for this reaction had a q...

Claims

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