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2 299 213

(13)

(51)

IPC

C07F7/04(2006-01-01)

(21) (22)

Application

2005140643/04, 2005-12-27

(24)

Start date

2005-12-27

(22)

Actual filing date

2005-12-27

(45)

Published

2007-05-20

(72)

Inventor

Levichev Aleksandr NikolaevichPavljukovich Nadezhda Gennad'EvnaValetskij Petr Maksimilianovich

(73)

Holder

Ooo Stroitel'Nykh Polimerov"

METHOD FOR PREPARING ALKOXYSILANES Russian patent published in 2007 - IPC C07F7/04

Abstract RU 2299213 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of alkoxysilanes. Invention describes a method for synthesis of alkoxysilanes of the general formula: R'_nSi(OR)_m wherein n = 0-3; m = 1-4 and n + m = 4. Method involves reaction of chlorosilanes of the general formula: R'_nSiCl_m wherein R' means hydrogen atom (H), CH₃, C₂H₄, C₂H or C₆H₆ with alcohols of the general formula: ROH wherein R means (C₂-C₈)-alkyl or (C₂-C₈)-aryl. Chlorosilane solution in an inert volatile nonpolar solvent is added to boiling alcohol solution in the same solvent at temperature 75-95°C, solvent is distilled off and evolving dry hydrogen chloride is captured. Method provides increasing yield, simplified process and decreasing time during the reaction carrying out.

EFFECT: improved method of synthesis.

6 cl, 1 tbl, 11 ex

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RU 2 299 213 C1

Authors

Levichev Aleksandr Nikolaevich

Pavljukovich Nadezhda Gennad'Evna

Valetskij Petr Maksimilianovich

Dates

2007-05-20—Published

2005-12-27—Filed