发明名称 |
ALTERNATIVE METHODS FOR THE SYNTHESIS OF ORGANOSILICON COMPOUNDS |
摘要 |
A method of forming chloro-substituted silanes from the reaction of an alkoxysilane with a chlorinating agent in the optional presence of a catalyst is provided. More specifically, chloro-substituted silanes, including but not limited to silicon tetrachloride, are formed by reacting a chlorinating agent, such as thionyl chloride, with an alkylalkoxysilane having the formula (R′O)4-xSiRx, where R and R′ are independently selected alkyl groups comprising one or more carbon atoms and x is 0, 1, 2, or 3. The catalyst may be dimethylformamide, (chloromethylene)dimethyliminium chloride, or triethylamine, among others. The chloro-substituted silane formed in the reaction along with several by-products has the formula (R′O)4-x-ySiRxCly; where x is 0, 1, 2, or 3 and y is 1, 2, 3, or 4. One of the by-products of the reaction is an alkyl chloride. |
申请公布号 |
US2015023861(A1) |
申请公布日期 |
2015.01.22 |
申请号 |
US201214384540 |
申请日期 |
2012.03.16 |
申请人 |
Katsoulis Dimitris E;Kenney Malcolm E;Vassilaras Plousia E |
发明人 |
Katsoulis Dimitris E;Kenney Malcolm E;Vassilaras Plousia E |
分类号 |
C01B33/08;C07C17/26 |
主分类号 |
C01B33/08 |
代理机构 |
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代理人 |
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主权项 |
1. A method of preparing chloro-substituted silanes, the method comprising the steps of:
providing an alkoxysilane having the formula (R′O)4-xSiRx, where R and R′ are independently selected alkyl groups comprising one or more carbon atoms and x is 0, 1, 2, or 3; providing a chlorinating agent; providing a catalyst; allowing the alkoxysilane to react with the chlorinating agent in the presence of the catalyst to form the chloro-substituted silanes along with multiple by-products; the chloro-substituted silanes having the formula (R′O)4-x-ySiRxCly; where x is 0, 1, 2, or 3; y is 1, 2, 3, or 4; and one of the by-products is an alkyl chloride; and separating the chloro-substituted silanes from the by-products. |
地址 |
Midland MI US |