| 摘要 |
PURPOSE: Provided is a process for the production of organosilylalkyl polysulfanes by reacting an organosilylalkyl and an anhydrous or virtually anhydrous ionic sulfide and elementary sulfur, wherein the elementary sulfur and organosilylalkyl halide are suspended in a polar organic solvent and the ionic sulfide is added to this suspension. CONSTITUTION: The process produces organosilylalkyl polysulfanes of the general formula(1) of (R1R2R3SiR4)2SX in which R1, R2, R3, which are identical to or different from one another, denote branched and unbranched alkyl and/or alkoxy groups with a chain length of 1-8 C atoms, aryl radicals, wherein at least one alkoxy group is present, R4 denotes a divalent alkylene radical with a chain length of 1-8 C atoms, or -(CH2)n-C6H4(CH2) where n=1-4; x is 1 to 4, by reaction of an organosilylalkyl halide of the general formula(2) of R1R2R3SiR4X in which R1, R2, R3 and R4 have the meanings given above, and X is chlorine, bromine or iodine, and an anhydrous or virtually anhydrous ionic sulfide of the general formula(3) of M¬+2S¬2- in which M¬+ denotes an alkali metal cation, an ammonium ion, an alkaline earth metal cation or a zinc cation, and elementary sulfur, wherein the elementary sulfur and organosilylalkyl halide are placed in a polar organic solvent and the anhydrous or virtually anhydrous ionic sulfide is added to this suspension.
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