- Original synthesis and reactivity of 1,3-benzodiselenolanes
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Preliminary results concerning the synthesis and reactivity of 1,3- benzodiselenolanes towards lithium diisopropylamide and butylithiums are described as well as original syntheses of aromatic compounds bearing sulfur and selenium atoms.
- Krief, Alain,Defrere, Laurent
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p. 6571 - 6575
(2007/10/03)
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- Synthesis, Properties, and Multinuclear (1H, 13C, 77Se) Magnetic Resonance Studies of the Hybrid Selenide Ligands o-C6H4(SeMe)Y (Y=NMe2, PMe2, AsMe2, SbMe2, OMe, and SMe)
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The reaction of o-bromophenyl methyl selenide with lithium dimethyl-phosphide, -arsenide, and -antimonide gave the seleno-phosphine o-C6H4(SeMe)PMe2 (2), -arsine o-C6H4(SeMe)AsMe2 (3), and -stibine o-C6H4(SeMe)SbMe2 (4) respectively.The seleno-amine o-C6H
- Hope, Eric G.,Kemmitt, Tim,Levason, William
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p. 487 - 490
(2007/10/02)
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- SYNTHESIS, PROPERTIES, AND MULTINUCLEAR (1H, 13C, 77Se) NUCLEAR MAGNETIC RESONANCE STUDIES OF SELENOETHERS CONTAINING TWO OR MORE SELENIUM ATOMS
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A convenient synthesis of MeSeLi from MeLi and Se8 in tetrahydrofuran (THF) has been used to prepare the bis-selenoethers MeSenSeMe (n = 1,2,3,6, or 12) and cis-MeSeCH=CHSeMe.PhSenSePh (n = 1-3) and cis-PhSeCH=CHSePh have been prepared from PhSe-, itself produced from Ph2Se2 and LiALH4-THF or sodium hydroxymethanesulphinate.The bis-selenoethers o-C6H4(SeR)2 (R = Me or Ph) were obtained from R2Se2 and benzyne.The syntheses of (RSeCH2)3CMe (R = Me or Ph), (MeSeCH2)4C, and (MeSeCH2CH2CH2)2Se are also described.The 1H, 13C, and 77Se n.m.r. spectra of these selenoethers have been recorded, and the chemical shifts and coupling constants (nJSe-H, nJSe-C) are discussed in terms of structures.Mass spectra of the selenoethers have been recorded and the principle fragmentation modes identified.
- Gulliver, David J.,Hope, Eric G.,Levason, William,Murray,Stephen G.,Potter, David M.,Marshall, Gregory L.
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p. 429 - 434
(2007/10/02)
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- ALTERNATIVE SYNTHESES OF DIBENZOTETRASELENAFULVALENE, OF SOME OF ITS PRECURSORS AND OF TETRASELENOALKENES ANALOGS
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We report alternative syntheses of dibenzotetraselenafulvalene, of a key precursor and of tetramethylselenoethylene.
- Lambert, Christian,Christiaens, Leon
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p. 833 - 834
(2007/10/02)
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- SYNTHESE NOUVELLE ET RAPIDE D'AKYLSELENO ET ALKYLTELLUROARENES AU MOYEN D'ETHERS-COURONNES
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A phase transfer catalytic synthesis of alkylseleno and alkyltelluroarenes is describe from arenediazonium tetrafluoroborates and dialkyldichalcogenides.
- Luxen, Andre,Christiaens, Leon
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p. 3905 - 3908
(2007/10/02)
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