METHOD FOR PRODUCING NOVEL SULFUR-CONTAINING ORGANOSILICON COMPOUND

摘要

Disclosed is a low-cost method for obtaining a high-purity sulfur-containing organosilicon compound having a polysulfide structure.  A sulfur-containing silicon compound represented by formula [II] is obtained by performing a first reaction for uniformly mixing an alkali hydrosulfide, sulfur and an alkali hydroxide in the presence of water, then dehydrating the reaction mixture, and then sequentially adding a halogenoalkoxysilane represented by formula [I] into the resulting mixture in a polar solvent. (R1-O)n(R1)3-n-Si-R2-X     [I] (R1-O)n(R1)3-n-Si-R2-Sm-R2-Si-(R1)3-n(O-R1)n     [II] In the formulae, R1 represents a monovalent hydrocarbon group having 1-16 carbon atoms; R2 represents a divalent hydrocarbon group having 1-9 carbon atoms; X represents a halogen atom; n represents an integer of 1-3; and m represents an integer of 1-12.