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- W2024809427 abstract "In the presence of hexamethylphosphoramide and a catalytic quantity of tetrakis(triphenylphosphine)palladium, hexamethyldisilane reacts with various functional aryl bromides to give the corresponding aryisilanes in satisfactory yields. The reaction has been extended to fluorinated aromatics and, for the first time, to bromo-derivatives of pyridine and quinoline as well as to 3,4-dichlorotrifluoromethylbenzene. This process, which avoids the use of a stoichiometric amount of metal, is especially useful when the function attached to the aryl bromide is not compatible with common organometailic intermediates. En présence d'hexaméthylphosphorotriamide et d'une quantité catalytique de tétrakis(triphénylphosphine) palladium, l'hexaméthyldisilane réagit avec divers dérivés aromatiques bromés fonctionnels, pour conduire aux arylsilanes correspondents avec d'assez bons rendements. La réaction a été étendue aux aromatiques fluorés et, pour la première fois, à des aromatiques azotés dérivés de la pyridine et de la quinoléine, ainsi qu'au 3,4-dichloro-trifluorométhylbenzène. Ce procédé, qui évite l'utilisation d'un métal en quantité stoechiométrique, est compétitif quand la fonction portée par le noyau aromatique n'est pas compatible avec les organométalliques classiques." @default.
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- W2024809427 date "1993-03-01" @default.
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- W2024809427 title "Synthèse d'aryl- et hètèroarylsilanes par scission de l'hexaméthyldisilane" @default.
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- W2024809427 doi "https://doi.org/10.1016/0022-328x(93)80045-d" @default.
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