Functionalized silsesquioxanes synthesis

F. J. Feher, K. D. Wyndham, and D. J. Knauer, Synthesis, characterization and lectin binding study of carbohydrate functionalized silsesquioxanes, Chem. Commun. (1998) 2393-2394. 

The chemistry of silicone halides was recently reviewed by Collins.13 The primary use for SiCU is in the manufacturing of fumed silica, but it is also used in the manufacture of polycrystalline silicon for the semiconductor industry. It is also commonly used in the synthesis of silicate esters. T richlorosilane (another important product of the reaction of silicon or silicon alloys with chlorine) is primarily used in the manufacture of semiconductor-grade silicon, and in the synthesis of organotrichlorosilane by the hydrosilylation reactions. The silicon halohydrides are particularly useful intermediate chemicals because of their ability to add to alkenes, allowing the production of a broad range of alkyl- and functional alkyltrihalosilanes. These alkylsilanes have important commercial value as monomers, and are also used in the production of silicon fluids and resins. On the other hand, trichlorosilane is a basic precursor to the synthesis of functional silsesquioxanes and other highly branched siloxane structures. 

SYNTHESIS OF FUNCTIONALIZED SILSESQUIOXANES AS MOLECULAR TEMPLATES FOR HYBRID MATERIALS... 

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