Synthesis of divalent ytterbium terphenylamide and catalytic application for regioselective hydrosilylation of alkenes
Synthesis of divalent ytterbium terphenylamide and catalytic application for regioselective hydrosilylation of alkenes
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二价三联苯酰胺镱的合成及其在烯烃区域选择性硅氢加成反应中的应用
DOI：
10.1039/c7dt01837a
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发表时间：
2017
影响因子：
4
通讯作者：
Cui Chunming
中科院分区：
文献类型：
--
作者：
Shi Yinghua;Li Jianfeng;Cui Chunming
合成并表征了二聚体异构型Yb-(3，5-Me2C6H3)2C6H3NH)Yb(N(SiMe3)2)2(1)。这种二价三苯酰胺络合物能够以非常低的催化剂负载量实现各种末端烯烃的高度区域选择性的硅氢化反应。1-苯基硅烷在高温下与苯基硅烷反应，导致硅烷与三苯基酰胺配体的脱氢偶联，并通过高价硅烷中间体重新分配酰胺配体，这已被光谱表征。
The dimeric heteroleptic ytterbium amido complex [(2,6-(3,5-Me2C6H3)2C6H3NH)Yb(N(SiMe3)2)]2 (1) has been prepared and characterized. This divalent terphenylamido complex enabled highly regioselective hydrosilylation of various terminal alkenes with very low catalyst loadings. The reaction of 1 with phenylsilane at high temperature led to the dehydrogenative coupling of silane with a terphenylamide ligand and redistributions of amide ligands via a hypervalent silane intermediate, which has been spectroscopically characterized.