PROCESS FOR PREPARING POLYSULFANE SILANES BY MEANS OF PHASE TRANSFER CATALYSIS

PROCESS FOR PREPARING POLYSULFANE SILANES BY MEANS OF PHASE TRANSFER CATALYSIS

A process for preparing polysulfane silanes of formula (I):(R1)3-mR2mSi-R3-Sx-R3-SiR2m(OR1)3-m  (I),may include reacting at least one halosilane of formula (II):(R1)3-mR2mSi-R3-Hal  (II),with M(SH)y and/or MzS and sulfur, in the presence of a phase transfer catalyst, a base and an aqueous phase, whe...

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Bibliographische Detailangaben
Hauptverfasser: MERTSCH, Horst, MAYER, Stefanie, BOLDT, Kai Dieter, ROSENSTINGL, Sebastian, MARION, Nicolas, PAULUS, Katharina Marie, ALBERT, Philipp, DROEGE, Helmut, HERMEKE, Julia, KOEPFER, Alexander, SMANS, Gert, BAUER, Elisabeth
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:A process for preparing polysulfane silanes of formula (I):(R1)3-mR2mSi-R3-Sx-R3-SiR2m(OR1)3-m  (I),may include reacting at least one halosilane of formula (II):(R1)3-mR2mSi-R3-Hal  (II),with M(SH)y and/or MzS and sulfur, in the presence of a phase transfer catalyst, a base and an aqueous phase, wherein the phase transfer catalyst is an alkylguanidinium catalyst of the formula (III):and at least two groups of R4, R5, R6, R7, and R8 are -(CH2)2CH3, -CH2CH3, or -CH3.