Catching the First Oligomerization Event in the Catalytic Formation of Polyaminoboranes: H3B•NMeHBH2•NMeH2 Bound to Iridium
Catching the First Oligomerization Event in the Catalytic Formation of Polyaminoboranes: H3B•NMeHBH2•NMeH2 Bound to Iridium
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DOI：
10.1021/ja2040738
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发表时间：
2011-07-27
影响因子：
15
通讯作者：
Weller, Andrew S.
中科院分区：
文献类型：
--
作者：
Johnson, Heather C.;Robertson, Alasdair P. M.;Weller, Andrew S.
通过在[Ir(PCy3)(2)(H)(2)(ETA(2)-H3B中心点NMeH2)][BAr4F][Ir(PCy3)(2)(H)(2)(ETA(2)-H3B中心点NMeH2)][BAr4F]中添加1当量的H3B中心点NMeH2到[Ir(PCy3)(2)(H)(2)[Ir(PCy3)(2)(H)(2)(ETA(2)-H3B中心点NMeH2)][BAr4F]中，我们报道了H3B中心点NMeH2催化脱氢聚合的第一步，形成了最简单的齐聚物种H3B中心点NMeHBH2中心点NMeH2。该反应也催化生成自由的线性二硼氮烷，但这最好是通过另一种化学计量合成来获得。
We report the first insertion step at a metal center for the catalytic dehydropolymerization of H3B center dot NMeH2 to form the simplest oligomeric species, H3B center dot NMeHBH2 center dot NMeH2, by the addition of 1 equiv of H3B center dot NMeH2 to [Ir(PCy3)(2)(H)(2)(eta(2)-H3B center dot NMeH2)] [BAr4F] to give [Ir(PCy3)(2)(H)(2)(eta(2)-H3B center dot NMeHBH2 center dot NMeH2)] [BAr4F]. This reaction is also catalytic for the formation of the free linear diborazane, but this is best obtained by an alternative stoichiometric synthesis.