Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Hydrosilylation Reaction of Unsaturated Compound Catalyzed by Metallocene

A technology for hydrosilylation reaction and metallocene catalyst is applied in the field of hydrosilylation reaction of unsaturated compounds, which can solve the problems of high price and limited industrial application, and achieve the effects of low cost, wide applicability and simple operation.

Active Publication Date: 2020-09-01
FOSHAN PULIDA TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to overcome the shortcoming that the industrial application of the existing hydrosilylation reaction catalyst is limited due to its high price, and provides a kind of unsaturated compound hydrosilylation reaction using a metallocene as a catalyst. The reaction condition of the catalyst is mild, safe and effective

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A metallocene catalyst is used to catalyze the hydrosilylation reaction of unsaturated compounds: titanocene dichloride (0.50 g, 0.002 mol), samarium metal powder (0.60 g, 0.004 mol), hexene (3.36 g, 0.04 mol ), Ph 2 SiH 2 (8.84 g, 0.048 mol) was added into a 25 mL flask and stirred at 90 °C for 12 h. After the reaction was completed, the conversion of olefins was 94.6% and the selectivity of β-addition products was 98.5% as measured by GC.

Embodiment 2

[0017] A metallocene catalyst is used to catalyze the hydrosilylation reaction of unsaturated compounds: titanocene dichloride (0.50 g, 0.002 mol), samarium metal powder (0.60 g, 0.004 mol), octene (4.48 g, 0.04 mol ), Ph 2 SiH 2 (8.84 g, 0.048 mol) was added to a 25 mL flask and stirred at 90 °C for 12 h. After the reaction was completed, the conversion of olefins was 92.8% and the selectivity of β-addition products was 99.2% as measured by GC.

Embodiment 3

[0019] A hydrosilylation reaction of unsaturated compounds catalyzed by a metallocene catalyst: titanium dichloride (0.50 g, 0.002 mol), samarium metal powder (0.60 g, 0.004 mol), acetophenone (12.0 g, 0.10 mol), Ph 2 SiH 2 (22.1 g, 0.12 mol) was added into a 50 mL flask and stirred at 90 °C for 6 h. After the reaction was completed, the conversion rate of acetophenone was 98.6% as measured by GC.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an unsaturated compound hydrosilylation reaction taking metallocene as a catalyst. The catalyst comprises a metallocene coordination compound and metal powder, the molar ratioof the metallocene coordination compound to the metal powder is 1:1-1:3, the metallocene coordination compound is titanocene dichloride or zirconocene dichloride, and the metal powder is any of samarium, magnesium and aluminum or zinc. The prepared catalyst is a non-precious metal catalyst and has the advantages of low cost, simplicity in operation and the like, a new variety is increased for a hydrosilylation reaction catalyst, and the catalyst has excellent catalytic effects on hydrosilylation reaction of unsaturated olefins, can catalyze addition reaction of olefin, ketone and hydrogen-containing silane and is wide in applicability.

Description

technical field [0001] The invention relates to a catalyst in the field of organosilicon chemistry, in particular to a hydrosilylation reaction of an unsaturated compound with a metallocene as a catalyst. Background technique [0002] Catalytic hydrosilylation plays an important role in synthetic organic chemistry, and is one of the most important ways to synthesize organosilicon coupling agents and functional organosilicon compounds and polymers. Usually directly use noble metal complexes such as platinum, rhodium, iridium as the catalyst (Ohtat T, Ito M, Tsuneto A, J.Chem.Soc., Chem.Commun., 1994, 2525; Peng J, Bai Y, Li J, Lai G, Current Org. Chem., 2011, 15(16), 2802), although their catalytic activity is relatively good, but the high price of this type of catalytic system limits its industrial application, most catalytic systems Only stay at the research level. In recent years, some low-cost, low-toxic, environmentally friendly, simple to prepare, and relatively stabl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/08
CPCC07F7/0829
Inventor 彭家建杨晓玲白赢厉嘉云刘煜
Owner FOSHAN PULIDA TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com