Syntheses and Reactions of Metal Organics. XVI. Synthesis and Hydrolysis of Dimethoxysilanediyl Bis(polyfluoroalkanoate)

Article abstract of DOI:10.1246/bcsj.64.2735

Four new silicon compounds, dimethoxysilanediyl bis(5H-octafluoropentanoate), (CH3O)2Si2, dimethoxysilanediyl bis(7H-dodecafluoroheptanoate), (CH3O)2Si2, dimethoxysilanediyl bis(9H-hexadecafluorononanoate, (CH3O)2Si2, and dimethoxysilanediyl bis(pentadecafluorooctanoate), (CH3O)2Si2, were prepared by the reaction of dichlorodimethoxysilane with sodium salts of fluoro-substituted carboxylic acid.The 1H NMR, 13C NMR, and 19F NMR and IR spectral data of these silicon compounds were obtained.In the course of a study of the s tability of the silicon compounds against hydrolysis by using 1H NMR spectral measurements, it was found that the ease of hydrolysis of the SiOCOR and the SiOCH3 moieties was exactly same.