FIELD: chemistry.
SUBSTANCE: engineering problem is to design a method for synthesis of mercaptoorganyl(alkoxysilanes) through reductive splitting of bis(alkoxysilylorganyl)polysulphides, which avoids additional use of water, alcohols and hydrogen sulphide and ensures high conversion. Proposed is a method for synthesis of mercaptoorganyl(alkoxysilanes) through hydrogenation of bis(alkoxysilyl-organyl)polysulphides at temperature below 190°C and pressure less than 100 bars under the effect of hydrogen in the presence of a transition metal-based catalyst without addition of water, alcohol or H2S.
EFFECT: proposed method can be realised in periodic and in continuous modes and ensures high conversion.
10 cl, 4 tbl, 13 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR SYNTHESIS OF MERCAPTOORGANYL(ALKOXYSILANES) | 2005 |
|
RU2388763C2 |
| METHOD OF OBTAINING ORGANOSILANES | 2006 |
|
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| RUBBER MIXTURES | 2007 |
|
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| RUBBER MIXTURES | 2012 |
|
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| ORGANIC SILICON COMPOUNDS | 2004 |
|
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| BENZOTHIAZOLE-CONTAINING SILANES, THEIR PREPARATION METHOD AND THEIR APPLICATION | 2018 |
|
RU2762110C2 |
| RUBBER MIXTURE | 2005 |
|
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| MERCAPTOSILANE MIXTURE WITH SOOT | 2013 |
|
RU2637024C2 |
| METHOD FOR SYNTHESIS OF MERCAPTOORGANYL(ALKOXYSILANES) | 2006 |
|
RU2412193C2 |
| SILICON-CONTAINING AZODICARBOXAMIDES, PRODUCTION AND USE THEREOF | 2016 |
|
RU2727928C2 |
