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Selective Tripodal Titanium Silsesquioxane Catalysts For The Epoxidation Of Unactivated Olefins, Sarah M. Peak

Theses and Dissertations--Chemistry

Regiomeric mixture of HMe₂Si(CH₂)₃(i-Bu)₆Si₇O₉(OH)₃ (6), containing a Si-H group in one of the ligands of the silsesquioxane, was tethered onto a vinyl terminated hyperbranched poly(siloxysilane) polymer via a hydrosilation reaction to generate extremely active catalysts, P1-8 and c-P1-8. The synthesis of 6, in good yield, was accomplished via hydrosilation of CH₂=CHCH₂(i-Bu)₇Si₈O₁₂ (1) to generate ClMe₂Si(CH₂)₃(i-Bu)₇Si₈O_{12 …}