- Complexation of paramagnetic intermediates formed in the photolysis of 7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-silanorbornadiene: A study by spin chemistry methods
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Complexation of paramagnetic intermediates formed in the photolysis of 7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-silanorbornadiene with n-donors (PPh3, O2) was studied by spin chemistry methods.
- Leshina,Taraban,Plyusnin,Volkova,Egorov
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- POLYMETHYLATION OF ORGANOCHLOROSILANES
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Polychloromethylation of Me3SiCl, Me2PhSiCl, Me2SiCl2, and MePhSiCl2 in the system magnesium-chloroform-THF has been studies under mild conditions (in the temperature renge 60 -65 deg C), and a scheme of formation of the main and by-products has been proposed.
- Podol'skii, A. V.,Khonina, T. G.,Lyampasova, T. P.,Kodess, M. I.
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p. 1476 - 1480
(2007/10/03)
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- CONVERSION OF DISILANES TO FUNCTIONAL MONOSILANES XIV. REACTIONS OF METHYLCHLORODISILANES WITH gem-POLYHALIDES CATALYZED BY ORGANIC BASES
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The reaction of methylchlorodisilanes with gem-polyhalides in the presence of organic bases has been investigated.The compounds CXCl2SiMeCl2 (X = Cl, H, F and SiMeCl2) were obtained in moderate to high yields from Cl2MeSiSiMeCl2 and polyhalomethanes (e.g., CCl4, CHCl3, CFCl3 and CCl3SiMeCl2) with PPh3 or Bu4NCl as catalyst.The reaction of 1,1,2-trichlorotrimethyldisilane with CCl4 afforded a 1:1 mixture of CCl3SiMeCl2 and CCl3SiMe2Cl.Also, XC6H4CCl2SiMeCl2 (X = H and 4-Cl) were obtained in moderate yields from Cl2MeSiSiMeCl2 and XC6H4CCl3 with Bu4NCl or Bu4NF as catalyst.
- Matsumoto, Hideyuki,Ohkawa, Kazuhiro,Matsubara, Ikuya,Kasahara, Miyuki,Arai, Takeshi,Nagai, Yoichiro
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- A CONVENIENT SYNTHESIS OF (TRICHLOROMETHYL)CHLOROSILANES
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In the presence of a catalytic amount of triphenylphosphine, 1,1,2,2-tetrachloro-1,2-dimethyldisilane reacted smoothly under mild conditions with carbon tetrachloride to produce (trichloromethyl)-methyldichlorosilane (1) in good yield. (Trichloromethyl)dimethyl-chlorosilane was also readily prepared by the triphenylphosphine-promoted transfer of the trichloromethyl group from (1) to dimethyldichlorosilane.
- Matsumoto, Hideyuki,Ohkawa, Kazuhiro,Nakano, Taichi,Nagai, Yoichiro
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p. 721 - 724
(2007/10/02)
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