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Si-O bond splitting

Keywords Siloxysilanes / Reaction Behavior / Si-O Bond Splitting/ Alkali Metal T rimethylsilanolates... [Pg.424]

In addition to 2b-5b a small amounts Me3SiO(MePhSi)3li was formed in the reactions of lb with lithium [9]. The siloxysilyllithium 2e partially reacted with lithium at -78°C as well as at -110 °C with Si-O bond splitting to give the silanolate (LiO) BuPhSiLi (12), which was trapped as the siloxydisilane (13) (Scheme 2). [Pg.177]

The siloxysilanes 1 and 2 react with MOSiMc3, mainly with splitting of one Si-O bond giving the corresponding alkali metal trimethylsiloxysilanolates (Eq. 4, Table 1). The formation of trimethylsiloxysilanolates also takes place in the reaction of 3 with LiOSiMc3 and NaOSiMc3. [Pg.425]

The observed reaction products of the reactions of 4 with sodium and potassium trimethylsilanolates show the course of several competitive reactions with splitting of Si-O as well as Si-H bonds. In contrast to (Me3SiO)3SiH (4) the siloxysilane (Et3SiO)3SiH (5) reacts with KOSiMe3 only under Si-0 bond splitting (Eq. 7), presumably due to steric reasons. [Pg.428]

See other pages where Si-O bond splitting is mentioned: [Pg.106]    [Pg.265]    [Pg.424]    [Pg.424]    [Pg.106]    [Pg.265]    [Pg.424]    [Pg.424]    [Pg.64]    [Pg.221]    [Pg.223]    [Pg.420]    [Pg.402]    [Pg.119]    [Pg.49]    [Pg.135]    [Pg.103]    [Pg.221]    [Pg.223]    [Pg.251]    [Pg.59]    [Pg.143]    [Pg.175]    [Pg.1404]    [Pg.247]    [Pg.91]    [Pg.280]    [Pg.291]    [Pg.198]    [Pg.33]    [Pg.458]    [Pg.169]    [Pg.234]    [Pg.168]    [Pg.1585]    [Pg.465]    [Pg.402]    [Pg.147]    [Pg.209]    [Pg.368]    [Pg.374]    [Pg.435]    [Pg.314]    [Pg.531]    [Pg.314]    [Pg.421]    [Pg.426]    [Pg.77]    [Pg.267]    [Pg.336]   
See also in sourсe #XX -- [ Pg.424 ]



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Bonding splitting

Si-0 bonds

Si-O bonds

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