- Reactions of methyl(pentafluorophenyl)- and methyl(pentafluorophenyl)phenylsilanes with electrophiles. A convenient preparative route to halogeno(methyl)pentafluorophenylsilanes C6F5SiMe2X and C6F5SiMeX2 (X=F, Cl and Br)
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Halogeno(methyl)pentafluorophenylsilanes C6F5SiMenX3-n (n=1, 2) (X=F, Cl, Br) were prepared in good yields from the corresponding phenylsilanes C6F5SiMenPh3-n by reactions with the electrophiles aHF, HCl-AlCl3, Br2-AlBr3 or AlX3 (X=Cl, Br) halogenated hydrocarbons. Additionally, reactions of C6F5SiMe3 and (C6F5)2SiMe2 with selected electrophiles were studied.
- Frohn,Lewin,Bardin
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p. 255 - 263
(2007/10/03)
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- REACTIONS OF POLYFLUORO AROMATIC COMPOUNDS WITH ELECTROPHILIC AGENTS IN THE PRESENCE OF TRIS(DIALKYLAMINO)PHOSPHINES. I. SYNTHESIS OF TRIALKYLSILYL(GERMYL, STANNYL, OR PLUMBYL)POLYFLUOROBENZENES
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Polyfluorophenyl bromides and iodides react with alkylhalo derivatives of silicon, germanium, tin, or lead in the presence of equimolar amounts of a tris(dialkylamino)phosphine to give polyfluorophenyl(alkyl) derivatives of the above-mentioned elements and phosphonium salts.Electron-donor substituents in position 4 of the polyfluorophenyl bromide slow down the reaction, while electron-acceptor substituents accelerate it.
- Bardin, V. V.,Pressman, L. S.,Rogoza, L. N.,Furin, G. G.
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p. 1931 - 1937
(2007/10/02)
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- REACTIONS OF POLYFLUOROARYL BROMIDES AND IODIDES WITH C-, Si-, Ge-, Sn- AND Pb-ELECTROPHILES AND TRIS(DIALKYLAMINO)PHOSPHINES
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The reactions of polyfluoroaryl bromides ArFBr or iodides ArFI with P(NR'2)3 and R3MX (R = alkyl; M = Si, Ge, Sn and Pb; X = Cl, Br) led to the formation of ArFMR3.The reactions of C6F5Br with P(NEt2)3 and C-electrophiles (CH3I, C6F5CF3 and (CF3)2C=CFC2F5) gave the products of pentafluorophenylation of these substrates.
- Bardin, V. V.,Pressman, L. S.,Rogoza, L. N.,Furin, G. G.
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p. 213 - 231
(2007/10/02)
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