FIELD: chemistry.
SUBSTANCE: method for producing symmetric alkoxy (organo) disiloxanes of the general formula [R1aR2b(AlkO)3-(a+b)Si]2O from alkoxysilanes of the general formula R1aR2bSi(AlkO)4-(a+b), where R1 is CH3, C2H5, CH=CH2, C6H5; R2 is CH3, C2H5; Alk is C1-C3 alkyl; a is equal to 0 or 1; b is equal to 0 or 1, comprising sequentially reacting the said alkoxysilane with sodium hydroxide and carbon dioxide.
EFFECT: increasing the yield of the desired products, does not require the use of catalyst and solvents, can be carried out in a single reactor without isolation of the intermediate product.
4 cl, 1 tbl, 20 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING POLYORGANOSILOXANES | 2014 |
|
RU2576311C1 |
| COMPOSITION OF OLEFINICALLY FUNCTIONALISED SILOXANE OLIGOMERS BASED ON ALKOXY SILANES | 2012 |
|
RU2613325C2 |
| LOW-CHLORIDE COMPOSITIONS OF OLEFINICALLY FUNCTIONALIZED SILOXANE OLIGOMERS BASED ON ALKOXYSILANES | 2012 |
|
RU2612909C2 |
| SODIUM OXIDE(AMINOPROPYL)DIALKOXYSILANES AND METHODS FOR PRODUCTION THEREOF | 2014 |
|
RU2592061C2 |
| METHOD OF PRODUCING SYMMETRIC METHYLPHENYL DISILOXANES AND HEXAPHENYL DISILOXANE BY DEHYDRO-CONDENSATION OF TRIORGANOSILANES | 2018 |
|
RU2687736C1 |
| MIXTURES, PARTICULARLY LOW IN VOLATILE ORGANIC COMPOUNDS, OF OLEFINICALLY FUNCTIONALISED SILOXANE OLIGOMERS BASED ON ALKOXY SILANES | 2012 |
|
RU2609209C2 |
| NANOSCALE FLUORINE-CONTAINING MOLECULAR SILICASOLS AND A METHOD FOR THEIR PRODUCTION | 2014 |
|
RU2661894C2 |
| POLYFUNCTIONAL ORGANOSILANE USEFUL FOR USING AS BINDING AGENT AND METHOD FOR ITS PREPARING | 2001 |
|
RU2272042C2 |
| ALKOXYSILANE/ORGANIC POLYMER COMPOSITION FOR USE IN MANUFACTURE OF THIN INSULATION FILM AND APPLICATION THEREOF | 1998 |
|
RU2180671C2 |
| METHOD OF PRODUCING POLYORGANOSILOXANES BASED ON ORGANOALKOXYSILANES | 2009 |
|
RU2428438C2 |
