- Hydrosilation of polyfluoroolefin in dense carbon dioxide
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Ruthenium and rhodium phosphine complexes catalyze the hydrosilation of olefins in dense carbon dioxide. The incorporation of polyfluorinated phosphine ligands in the conventional hydrosilation catalysts provides enhanced solubility in dense carbon dioxide resulting in a higher catalytic activity and selectivity; the best result was obtained using RuCl2[P(C6H4-p-CF3)3] 3. The reaction is applicable to the synthesis of a fluorous silane coupling agent.
- He, Liang-Nian,Choi, Jun-Chul,Sakakura, Toshiyasu
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p. 2169 - 2171
(2007/10/03)
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- Syntheses and Reaction of Metal Organics. XVII. Synthesis of Silane Coupling Agent Having Fluorocarbon Chain and Surface Modification of Glass Plate
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Four silane coupling agents, 1H,1H,2H,2H-polyfluoroalkyl(dimethoxy)(methyl)silanes (1H,1H,2H,2H-henicosafluorododecyl(dimethoxy)(methyl)silane, C10F21C2H4Si(CH3)(OCH3)2, 1H,1H,2H,2H-heptadecafluorodecyl(dimethoxy)(methyl)silane, C8F17C2H4Si(CH3)(OCH3)2, 1H,1H,2H,2H-tridecafluorooctyl(dimethoxy)(methyl)silane, C6F13C2H4Si(CH3)(OCH3)2, and 1H,1H,2H,2H-nonafluorohexyl(dimethoxy)(methyl)silane, C4F9C2H4Si(CH3)(OCH3)2), were prepared by the hydrosilylation of dichloro(methyl)silane with the corresponding 1H,1H,2H,2H-polyfluoro-1-alkene in the presence of hydrogen hexachloroplatinate(IV), followed by the reaction with sodium methoxide.The surface modification of glass plate was attempted uisng these products.From measurements of the contact angles θ(deg) of water and oleic acid against a modified glass plate surface, the coupling agents were found to have high modification ability.The oxidation resistance of the modified glass surface was also investigated.
- Yoshino, Norio,Yamamoto, Yasushi,Seto, Tsuyoshi,Tominaga, Shin-ichi,Kawase, Tokuzo
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p. 472 - 476
(2007/10/02)
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