[CH2:1]([Si:4]([CH2:12][CH:13]=[CH2:14])([CH2:9][CH:10]=[CH2:11])[CH2:5][CH2:6][CH2:7]Br)[CH:2]=[CH2:3].[CH2-]C(C)=O.[OH:19][CH2:20][CH:21]([CH2:23]O)[OH:22].[SiH4]>O1CCCC1.S([O-])(O)(=O)=O.C([N+](CCCC)(CCCC)CCCC)CCC>[CH2:1]([Si:4]([CH2:12][CH:13]=[CH2:14])([CH2:9][CH:10]=[CH2:11])[CH2:5][CH2:6][CH2:7][CH2:23][CH:21]([CH2:20][OH:19])[OH:22])[CH:2]=[CH2:3]Triallyl glycerylpropyl silane was prepared from triallyl bromopropyl silane prepared in Example 7 via glycerol acetonide intermediate. A 250 ml flask equipped with a stir bar was charged with 22.9 grams of 74% triallyl bromopropyl silane reagent (17.0 grams, 62 millimoles of triallyl bromopropyl silane prepared as described in Example 7). The silane was diluted with 175 ml of tetrahydrofuran (commercially available from Aldrich Chemical Co. of Milwaukee, Wis.) containing 1.1 grams (3.2 millimoles) tetrabutylammonium hydrogen sulfate (commercially available from Aldrich Chemical Co.). The reaction vessel was then cooled in an ice bath and purged with nitrogen.
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