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Tris methoxo

When a five-fold molar excess of boron trichloride was condensed on cis- or trans-hydroxy methoxy tellurium tetrafluoride and the reaction mixture warmed to 20", hydrogen chloride was liberated. After the hydrogen chloride evolution had ceased, an additional amount of boron trichloride was added. Removal of all volatile materials left the extremely moisture-sensitive boron tris[methoxo(oxo) tetrafluorotellurates (VI)] as residue. The compounds, obtained in quantitative yields, were purified by vacuum distillation3. [Pg.130]

Refluxing a mixture of boron tris[methoxo(oxo)tetrafluorotellurates (VI)] with an excess of arsenic trifluoride yielded arsenic tris[methoxo(oxo)tetrafluorotellurates( VI)]. ... [Pg.131]

When a ten-fold molar excess of arsenic trilluoride was dropped onto cis- or trans-boron tris[methoxo(oxo)tetrafluorotellurate(VI)], the mixture refluxed for 30 minutes, and excess arsenic trifluoride removed by distillation, cis- or trans-arsenic tris[methoxo(oxo) tetra-fluorotellurate( VI)] remained as a colorless, moisture-sensitive liquid. The liquids were purified by vacuum-distillation2. [Pg.137]

Arsenic [methoxo(oxo)tetrafluorotellurate] fluorides, observed as intermediates by, 9F-NMR spectroscopy, dismutated upon distillation to arsenic trifluoride and arsenic tris[methoxo( oxo)tetrafluorotellurate(VI)]2. [Pg.137]

Cis- and ranj-hydroxy methoxy tellurium tetrafluoride reacted stereospecifically with chlorotrimethylsilane tetramethylstannane, and boron trichloride with elimination of hydrogen chloride or methane. The compounds obtained are trimethylsiloxy methoxy tellurium tetrafluoride trimethylstannoxy methoxy tellurium tetrafluoride, and boron tris[methoxo(oxo)tetrafluorotellurate (VI)]... [Pg.130]

A few organotitanium alkoxides have been structurally determined. In bis-benzyl titanium diethoxide a centrosymmetric dimer [(C6H5CH2)4Ti2(/r-OEt)2(OEt)2] is formed involving five-coordinated Ti in a distorted TBP configuration. In bis-methyl titanium tritox methoxide (tritox = tri-tert-butyl carbinolate, BU3CO) the methoxo... [Pg.273]

See other pages where Tris methoxo is mentioned: [Pg.120]    [Pg.130]    [Pg.130]    [Pg.137]    [Pg.137]    [Pg.120]    [Pg.137]    [Pg.120]    [Pg.130]    [Pg.130]    [Pg.137]    [Pg.137]    [Pg.120]    [Pg.137]    [Pg.181]    [Pg.728]    [Pg.457]    [Pg.118]    [Pg.181]   
See also in sourсe #XX -- [ Pg.130 , Pg.131 ]

See also in sourсe #XX -- [ Pg.130 , Pg.131 , Pg.137 ]



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