| 摘要 |
FIELD: organosilicon compounds, chemical technology. SUBSTANCE: invention describes method for preparing mixtures of organosilicon oligosulfanes with high content of disulfanes of the general formula: Z-Alk-Sx-Alk-Z wherein Z represent groups: wherein R1 means linear or branched alkyl group with 1-6 carbon atoms, cycloalkyl residue with 5-8 carbon atoms, benzyl residue or phenyl residue optionally substituted with methyl, ethyl or chlorine atom; R2 represents alkoxy-group with linear or branched carbon chain with 1-6 carbon atoms or cycloalkoxy-group with 5-8 carbon atoms, phenoxy-group or benzyloxy-group being R1 and R2 can have identical or different values, respectively; Alk represents preferably bivalent saturated linear or branched hydrocarbon residue with 1- 10 carbon atoms, methylene preferably, and also ethylene, isopropylene, n-propylene, isobutylene or n- butylene preferably, and values n-pentylene, 2-methylbutylene, 3-methylbutylene, n-pentylene, 1,3- dimethylpropylene and 2,3-dimethylpropylene are preferably in similar degree but n-propylene is preferable especially, or the group: wherein n = 1-4; x = 1.5-3.0. Compounds are synthesized by interaction of highly dispersed sodium and sulfur in a single organic solvent followed by interaction of formed Na2Sx with halogenalkylalkoxysilane to yield the required end product. Invention provides the development of method for preparing organosilicon disulfanes based on preparing separate elements as components of Na2Sx. EFFECT: improved preparing method. 4 cl, 2 ex _
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