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Iron-catalysed allylation–hydrogenation sequences as masked alkyl–alkyl cross-couplings

机译:铁催化的烯丙基化-氢化序列作为掩蔽的烷基-烷基交叉偶联

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An iron-catalysed allylation of organomagnesium reagents (alkyl, aryl) with simple allyl acetates proceeds under mild conditions (Fe(OAc) _(2) or Fe(acac) _(2) , Et _(2) O, r.t.) to furnish various alkene and styrene derivatives. Mechanistic studies indicate the operation of a homotopic catalyst. The sequential combination of such iron-catalysed allylation with an iron-catalysed hydrogenation results in overall C(sp ~(3) )–C(sp ~(3) )-bond formation that constitutes an attractive alternative to challenging direct cross-coupling protocols with alkyl halides.
机译:在简单条件下(Fe(OAc)_(2)或Fe(acac)_(2),Et _(2 O),rt)在简单条件下进行有机镁试剂(烷基,芳基)与简单乙酸烯丙酯的铁催化烯丙基化反应提供各种烯烃和苯乙烯衍生物。机理研究表明同位催化剂的运行。这种铁催化的烯丙基化与铁催化的加氢的顺序结合导致整体C(sp〜(3))-C(sp〜(3))键形成,构成了挑战性直接交叉偶联方案的有吸引力的替代方案与烷基卤化物。

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