Method of preparing organo dialkylalkoxysilane

Details Method of preparing organo dialkylalkoxysilane Method of preparing organo dialkylalkoxysilane

2003-06-23

2010-02-09

Sullivan, Daniel M (Department: 1621)

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

Organic compounds

Silicon containing

Reexamination Certificate

active

07659418

ABSTRACT:
The invention relates to the preparation of organodialkylalkoxysilane using a continuous method consisting in bringing an alkanol into continuous contact with an omega-haloalkyl dialkylhalosilane in a countercurrent reactor, such as a plate column or a packed column. The reaction is performed in the aforementioned countercurrent reactor in the presence or absence of a non-reactive solvent with scavenging of the hydrochloric acid formed. The omega-haloalkyl dialkylalkoxysilane thus formed is particularly suitable for use as a starting material for the preparation of organosilicon compounds containing sulphur having general formula (I) by means of sulphidisation reaction on an alkaline metal polysulphide.

REFERENCES:
Urbaniak et al., {Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, Synthesis of Siloxyphosphines, 1988, 18 (7), 695-703}.

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