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Hydrosilanes dehydrocoupling

Hydride terminated disilanes, 30-32 Hydroarylation reactions of alkynes, 273 Hydrogen atoms as ligands, 92-93 Hydrogenation reactions, 276-277 C-H bonds in, 276-277 Hydrosilanes dehydrocoupling of, 1-52 initiated by metals other than Group 4, 37 16... [Pg.287]

Corey, Joyce Y., Dehydrocoupling of Hydrosilanes to Polysilanes and Silicon... [Pg.466]

Mono- and bis(silyl)platinum(II) complexes are believed to play important catalytic roles in hydrosilylation, dehydrocoupling, and double silylation reactions with disilanes and hydrosilanes. A stable, mono(silyl)platinum(II) complex has been prepared by the oxidative addition reaction of the sterically hindered, primary arylsilane 2,6-Mes2C6H3SiH3 (Mes = 2,4,6-trimethylbenzene) to the platinum(O) species [Pt(PPr3)3] in hexane solution at room temperature.133 The colorless product m-[PLl 1(2,6-Mes2C6II3(11 )2Si)(PPr3)2] (21) was isolated as the OPPr3 adduct, and its... [Pg.689]

The Harrod group has investigated dehydrocoupling reactions of silanes with amines, hydrazines, and ammonia. In the presence of catalytic amounts of CuCl, hydrosilanes react with primary amines to give silazanes in high yields.180 For example, the reaction of phenylmethylsilane with benzylamine leads to a mixture of three products, with dependence on initial molar ratio of silane to amine [Eq. (72)]. Equimolar silane to amine ratio leads to formation of 1 as major product, whereas 2 is the main product if a 2 1... [Pg.254]

A. Linear-selective Dehydrocoupling of Hydrosilanes to Poly silanes. 144... [Pg.143]

D. Si-N Dehydrocoupling of Poly(hydrosilane) with Polyborazine Additive. 152... [Pg.143]

Woo s combinative catalyst system of CpjMCE/Hydride is different from the catalyst systems using Cp2MCl2/2 alkyllithiums of Corey, Tanaka, and Harrod. Real catalytic species in the dehydrocoupling of hydrosilanes could be a metallocene hydride based on a sigma-bond metathesis mechanism.12,1315 Inorganic hydrides effectively produce a metallocene hydride whereas alkyllithium can produce a metallocene hydride via... [Pg.145]

C. Combinative Si-O/Si-Si Dehydrocoupling of Hydrosilane with Alcohol to Poly(alkoxysilane)... [Pg.151]

Similarly, Woo et al. carried out the combinative Si-Si/Si-O dehydrocoupling reactions of mixed hydrosilanes with alcohols (two different hydrosilanes were used in the same mole ratio 0.5 0.5 1.5 mole ratio) at 50 °C, catalyzed by Cp2MCl2/Red-Al (M = Ti, Zr) and Cp (M = Co, Ni), producing copoly(alkoxysilane)s in one-pot in high yield [Eq. (9)].37a... [Pg.152]

Catalyst Precursors of Group 4 Examined for Dehydrocoupling of Hydrosilanes... [Pg.4]

See other pages where Hydrosilanes dehydrocoupling is mentioned: [Pg.370]    [Pg.370]    [Pg.225]    [Pg.198]    [Pg.462]    [Pg.516]    [Pg.345]    [Pg.321]    [Pg.255]    [Pg.343]    [Pg.143]    [Pg.144]    [Pg.144]    [Pg.145]    [Pg.146]    [Pg.151]    [Pg.151]    [Pg.151]    [Pg.152]    [Pg.152]    [Pg.154]    [Pg.1]    [Pg.1]    [Pg.3]    [Pg.3]    [Pg.3]    [Pg.3]    [Pg.5]    [Pg.7]    [Pg.9]    [Pg.11]    [Pg.12]    [Pg.13]    [Pg.15]    [Pg.17]   
See also in sourсe #XX -- [ Pg.505 ]



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