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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| creator | 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 |
| description | 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. |
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| subjects | 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 |
| title | PROCESS FOR PREPARING POLYSULFANE SILANES BY MEANS OF PHASE TRANSFER CATALYSIS |
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