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Method for hydrosilylation reaction by using cobalt catalyst

A technology of hydrosilylation reaction and cobalt catalyst, which is applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., and can solve acid instability and easy hydrolysis problem, to achieve the effect of good stability, wide applicability and low cost

Active Publication Date: 2019-11-19
河池市壮铭生物制药有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst has the characteristics of high catalytic activity and good selectivity for the hydrosilylation reaction of olefins and hydrogen-containing silanes. Acid unstable, easily hydrolyzed

Method used

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  • Method for hydrosilylation reaction by using cobalt catalyst
  • Method for hydrosilylation reaction by using cobalt catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0033] 4'-phenyl-2,2':6',2"-terpyridine (0.12g, 0.0004mol), cobalt isooctanoate (0.14g, 0.0004mol), hexene (34g, 0.4mol), Ph 2 SiH 2 (97g, 0.48mol) was added to a 500ml reaction flask, and stirred at 40°C for 3h. After the reaction was completed, the conversion rate of hexene was 98% as measured by GC-MS, and the selectivity of β-addition product was 100%.

Embodiment 2

[0035] 4'-phenyl-2,2':6',2"-terpyridine (0.06g, 0.0002mol), cobalt isooctanoate (0.14g, 0.0004mol), octene (45g, 0.4mol), Ph 2 SiH 2 (97g, 0.48mol) was added into a 500ml reaction flask, and stirred at 40°C for 3h. After the reaction was completed, the octene conversion rate was 100% as measured by GC-MS, and the selectivity of β-addition products was 97.2%.

Embodiment 3

[0037] 4'-phenyl-2,2':6',2"-terpyridine (0.06g, 0.0002mol), cobalt isooctanoate (0.07g, 0.0002mol), octene (45g, 0.4mol), Ph 2 SiH 2 (89g, 0.44mol) was added into a 500ml reaction flask and stirred at 40°C for 3h. After the reaction was completed, the conversion of octene was 98.2% and the selectivity of β-addition product was 96.8% as measured by GC-MS.

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Abstract

The invention improves a method for a hydrosilylation reaction by using a cobalt catalyst, and relates to the technical field of hydrosilylation reactions. The method comprises: carrying out a hydrosilylation reaction on reaction raw materials of an olefin and a hydrogen-containing silane and a cobalt catalyst at a temperature of 0-50 DEG C, wherein the cobalt catalyst comprises a terpyridine derivative and a cobalt salt according to a molar ratio of 1:0.5-1:3. According to the present invention, the method for catalyzing the hydrosilylation reaction by using the cheap, easily available and widely applicable cobalt catalyst under the low heating condition is provided, wherein the method has characteristics of high olefin conversion rate and good selectivity of the addition product.

Description

technical field [0001] The invention relates to the technical field of hydrosilylation reaction, in particular to a method for hydrosilylation reaction using a cobalt catalyst. Background technique [0002] The hydrosilylation reaction is a typical reaction to form Si-C bonds. It is an addition reaction between hydrogen-containing silane and unsaturated bond-containing compounds. It is also one of the methods for preparing organosilicon compounds or organosilicon polymers. Since the discovery of the hydrosilylation reaction in the late 1940s, catalysts that catalyze the hydrosilylation reaction have attracted the attention of researchers. [0003] It is very important for a hydrosilylation catalyst to have good catalytic activity and selectivity. In actual industrial production, the selectivity of the addition product of the catalyzed hydrosilylation reaction is more important; Side reactions at the unsaturated positions of the unsaturated reactants, such as reduction reac...

Claims

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Application Information

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IPC IPC(8): B01J31/04B01J31/30C07F7/08
CPCC07F7/0805C07F7/0829B01J31/04B01J31/30
Inventor 白赢
Owner 河池市壮铭生物制药有限责任公司
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