Processes for the production of tri-organo-monoalkoxysilanes and process for the production of tri-organo-monochlorosilanes
US8008521B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 26, 2008 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Jul 4, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/188
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A silane containing a bulky hydrocarbon group or groups R therein and having the formula (III)R3−(x+y)(R1)x(R2)ySi(OR3)can be produced by reacting a silane of the formula (I)(R1)x(R2)ySiCl3−(x+y)(OR3)with a Grignard reagent of the formula (II)RMgXFurther, a tri-organo-chlorosilane of the formula (XIIa)(R1)(R2)(R3)SiClcan be produced by reacting a tri-organo-silane of the formula (XIa)(R1)(R2)(R3)SiZ1 with hydrochloric acid.Furthermore, a tri-organo-monoalkoxysilane of the formula (XXIII)R3−(x+y)(R1)x(R2)ySi(OR3)can be produced when a silane of the formula (XXI)(R1)x(R2)ySiCl4−(x+y) is reacted with a Grignard reagent of the formula (XXII)RMgXwith addition of and reaction with an alcohol or an epoxy compound during the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.