PROCESS FOR PREPARING ORGANOSILANES

PURPOSE: A method for preparing organosilane is provided to improve selectivity and conversion ratio and use alkali metal hydroxide inside sulfide ingredient. CONSTITUTION: An organosilane of chemical formula 1 is prepared by reacting (haloorganyl)alkoxysilane of chemical formula 2 with alkali metal...

Full description

Saved in:
Bibliographic Details
Main Authors DESCHLER ULRICH, SCHWAN STEPHANIE, KOENIGSTEIN STEFAN, KORTH KARSTEN, KIEFER INGO, DROEGE HELMUT, ALIG ALFRED
Format Patent
LanguageEnglish
Published 10.02.2010
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Online AccessGet full text

Cover

More Information
Summary:PURPOSE: A method for preparing organosilane is provided to improve selectivity and conversion ratio and use alkali metal hydroxide inside sulfide ingredient. CONSTITUTION: An organosilane of chemical formula 1 is prepared by reacting (haloorganyl)alkoxysilane of chemical formula 2 with alkali metal hydrogen sulfide, sulfur and alkali metal carbonate in alcohol. The mole ratio between (haloorganyl)alkoxysilane and alkali metal hydrogen sulfide is 1:0.4-1:0.75. The mole ratio between alkali metal hydrogen sulfide and alkali metal carbonate is 1:0.5-1:1.5. An additive is added before, during, or after reaction. The additive is non-alcoholic solvent or polar, protic, nonprotic, basic or acidic additive. A method for preparing organosilane comprises a step of removing alcohol/water mixture from crude product suspension liquid and removing a product of chemical formula 1 from the solid. The alcohol/water mixture is removed from the product of chemical formula 1 by distillation or phase-isolation.
Bibliography:Application Number: KR20090069870