New Routes to Soluble Magnesium Amidoborane Complexes

New Routes to Soluble Magnesium Amidoborane Complexes
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可溶性氨基硼烷镁配合物的新路线

DOI:
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发表时间:
2012
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影响因子:
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通讯作者:
A. Stasch
A. Stasch
中科院分区:
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作者:
Cameron Jones;Simon J. Bonyhady;Sharanappa Nembenna;A. Stasch

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已知和新型氨基硼烷镁配合物 [{(Nacnac)Mg(NH2BH3)}2] 和 [(Nacnac)Mg(NH2BH3)(THF)] 的几种新合成路线(Nacnac = DipNacnac,[{N(Dip)C(Me)}2CH]– 或 tBuNacnac,[{N(Dip)C(tBu)}2CH]–;Dip =据报道,C6H3iPr2-2,6)。这些包括 NH3BH3 (AB) 与镁 (I) 二聚体 [{(DipNacnac)Mg}2] 的还原脱氢反应,以及 [(DipNacnac)MgI(OEt2)] 与 Li(NH2BH3) 的盐消除反应。此外,氨硼烷与两种氢化镁络合物[{(Nacnac)Mg(μ-H)}2]或烷基镁(II)络合物[{(DipNacnac)Mg(μ-nBu)}2]的反应已被证明首次产生明确的镁的母体氨基硼烷络合物。获得了所有制备的配合物的晶体结构,并显示与先前报道的相关化合物的晶体结构相似。
Several new synthetic routes to the known and new magnesium amidoborane complexes, [{(Nacnac)Mg(NH2BH3)}2] and [(Nacnac)Mg(NH2BH3)(THF)] (Nacnac = DipNacnac, [{N(Dip)C(Me)}2CH]–, or tBuNacnac, [{N(Dip)C(tBu)}2CH]–; Dip = C6H3iPr2-2,6), are reported. These include the reductive dehydrogenation reaction of NH3BH3 (AB) with the magnesium(I) dimer, [{(DipNacnac)Mg}2], and the salt elimination reaction of [(DipNacnac)MgI(OEt2)] with Li(NH2BH3). Moreover, the reaction of ammonia–borane with two magnesium(II) hydride complexes, [{(Nacnac)Mg(μ-H)}2], or an alkylmagnesium(II) complex [{(DipNacnac)Mg(μ-nBu)}2], have been shown to yield well defined parent amidoborane complexes of magnesium for the first time. The crystal structures of all prepared complexes were obtained and shown to be similar to those previously reported for related compounds.
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