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AssigneeJapan Science and Technology Agency
InventorsYoshinori Yamamoto, Naoki Asao, Hisamitsu Tomeba
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There is provided a method of synthesizing an organosilicon compound. This method comprises polymerizing, as a starting material, allyl-(4-alkynyl-phenyl) silane represented by the following general formula (3) in a solvent selected from methylene chloride, chloroform, carbon tetrachloride and 1,2-dichloroethane and under the presence of hafnium tetrachloride to obtain an organosilicon compound represented by the following general formula (1). (wherein R is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a phenyl group, R's may be the same or different and are individually an alkyl group having 1 or 2 carbon atoms or a phenyl group, and n is an integer of 4 to 2500).
An organosilicon compound represented by the following general formula (1)
An organosilicon compound represented by the following general formula (3)
An organosilicon compound represented by the following general formula (2)
An organosilicon compound represented by the following general formula (4)
A method of synthesizing an organosilicon compound comprising polymerizing, as a starting material, allyl-(4-alkynyl-phenyl) silane represented by the following general formula (3) in a solvent selected from methylene chloride, chloroform, carbon tetrachloride and 1,2-dichloroethane and under the presence of hafnium tetrachloride to obtain an organosilicon compound represented by the following general formula (1)
A method of synthesizing an organosilicon compound comprising polymerizing, as a starting material, 1-allyl-2-(4-alkynyl-phenyl) disilane represented by the following general formula (4) in a solvent selected from methylene chloride, chloroform, carbon tetrachloride and 1,2-dichloroethane and under the presence of hafnium tetrachloride to obtain an organosilicon compound represented by the following general formula (2)
Dependencies are inferred from the claim text.
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Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the…
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with…
Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
Compositions of macromolecular compounds
Term ended 18 Feb 2025 (estimated)
This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2004-044482, filed Feb. 20, 2004, the entire contents of which are incorporated herein by reference.
1. Field of the Invention
The present invention relates to an organosilicon compound and a method of manufacturing the organosilicon compound.
Next, embodiments of the present invention will be explained in details.
It has been found out by the present inventors that it is possible, through the employment of a Lewis acid catalyst such as hafnium tetrachloride, to enable the carbosilylating reaction of allylsilane or vinylsilane to inactivated acetylenic linkage to effectively take place. Moreover, this reaction has very high regioselectivity as well as very high stereoselectivity, and is hence proceeds complete trans-addition as represented by the following reaction formula.
(wherein R is an allyl group or vinyl group; R′ is an alkyl group having 1 or 2 carbon atoms or a phenyl group).