FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention describes a method for preparing organosilylalkylpolysulfanes of the general formula (I): (R1R2R3SiR4)2Sx by interaction of organosilylalkylpolysulfanes of the general formula (II): (R1R2R3SiR4)2Sy with ionic sulfide of the general formula (III): M+ 2S2- and with organosilylalkyl halide of the general formula (I): R1R2R3SiR4X. Method involves preliminary the combine loading long-chain organosilylalkylpolysulfane of the general formula (II) and organosilylalkyl halide of the general formula (IV) into reactor and addition ionic sulfide of the general formula (III) to this solution by some portions.
EFFECT: improved preparing method.
3 cl, 34 ex
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