title: Facile preparation of silica-supported Ti catalysts effective for the epoxidation of cyclooctene using Ti-bridged silsesquioxanes.
abstract: When used as additives, silicas strongly promoted the epoxidation of cyclooctene by (t)BuOOH in the presence of Ti-silsesquioxane (Ti-POSS), where Ti species were found to be bound to the silica surface. Based on this observation, highly-active silica-supported Ti catalysts were prepared by the thermal treatment of mixtures of Ti-POSS and silica.
authors: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. wadaken@scl.kyoto-u.ac.jp
authors: Kenji
authors: K
authors: Wada
authors: Shuko
authors: S
authors: Sakugawa
authors: Masashi
authors: M
authors: Inoue
mesh_terms: D002384:Catalysis; D034242:Cyclooctanes / Q000737:chemistry*; D004852:Epoxy Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D017646:Organosilicon Compounds / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D034242:Cyclooctanes; D004852:Epoxy Compounds; D009942:Organometallic Compounds; D017646:Organosilicon Compounds; C521417:polyhedraloligosilsesquioxane; D012822:Silicon Dioxide; D014025:Titanium