The substitution of an O atom in the Cy Si O framework by a heteroatom or a heteroatom-containing group (Z) provides a simple route to discrete heterosilsesquioxane frameworks 1. In this reaction the Cy Si O framework is initially opened with triflic acid and then treated with different nucleophiles (Cy=cyclohexyl; Z=NPh, SO , nBuBO , CrO ).
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A New Route to Heterosilsesquioxane Frameworks.
Angew Chem Int Ed Engl
October 1998
Department of Chemistry, University of California at Irvine, Irvine, CA 92697 (USA), Fax: (+1) 714-824-2657.
The substitution of an O atom in the Cy Si O framework by a heteroatom or a heteroatom-containing group (Z) provides a simple route to discrete heterosilsesquioxane frameworks 1. In this reaction the Cy Si O framework is initially opened with triflic acid and then treated with different nucleophiles (Cy=cyclohexyl; Z=NPh, SO , nBuBO , CrO ).
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