Processes for the production of tri-organo-monoalkoxysilanes...

Details Processes for the production of tri-organo-monoalkoxysilanes... Processes for the production of tri-organo-monoalkoxysilanes...

2011-08-30

2011-08-30

Witherspoon, Sikarl (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C556S466000, C556S467000

Reexamination Certificate

active

08008521

ABSTRACT:
A silane containing a bulky hydrocarbon group or groups R therein and having the formula (III)in-line-formulae description="In-line Formulae" end="lead"?R3−(x+y)(R1)x(R2)ySi(OR3)in-line-formulae description="In-line Formulae" end="tail"?can be produced by reacting a silane of the formula (I)in-line-formulae description="In-line Formulae" end="lead"?(R1)x(R2)ySiCl3−(x+y)(OR3)in-line-formulae description="In-line Formulae" end="tail"?with a Grignard reagent of the formula (II)in-line-formulae description="In-line Formulae" end="lead"?RMgXin-line-formulae description="In-line Formulae" end="tail"?Further, a tri-organo-chlorosilane of the formula (XIIa)in-line-formulae description="In-line Formulae" end="lead"?(R1)(R2)(R3)SiClin-line-formulae description="In-line Formulae" end="tail"?can be produced by reacting a tri-organo-silane of the formula (XIa)in-line-formulae description="In-line Formulae" end="lead"?(R1)(R2)(R3)SiZ1in-line-formulae description="In-line Formulae" end="tail"?with hydrochloric acid.Furthermore, a tri-organo-monoalkoxysilane of the formula (XXIII)in-line-formulae description="In-line Formulae" end="lead"?R3−(x+y)(R1)x(R2)ySi(OR3)in-line-formulae description="In-line Formulae" end="tail"?can be produced when a silane of the formula (XXI)in-line-formulae description="In-line Formulae" end="lead"?(R1)x(R2)ySiCl4−(x+y)in-line-formulae description="In-line Formulae" end="tail"?is reacted with a Grignard reagent of the formula (XXII)in-line-formulae description="In-line Formulae" end="lead"?RMgXin-line-formulae description="In-line Formulae" end="tail"?with addition of and reaction with an alcohol or an epoxy compound during the reaction.

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