Ni(I) and Ni(II) ring-expanded N-heterocyclic carbene complexes: C-H activation, indole elimination and catalytic hydrodehalogenation
Ni(I) and Ni(II) ring-expanded N-heterocyclic carbene complexes: C-H activation, indole elimination and catalytic hydrodehalogenation
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DOI：
10.1039/c0cc01335h
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发表时间：
2010-01-01
影响因子：
4.9
通讯作者：
Whittlesey, Michael K.
中科院分区：
文献类型：
--
作者：
Davies, Caroline J. E.;Page, Michael J.;Whittlesey, Michael K.
庞大的6元n杂环碳烯6-Mes与Ni(cod)(2)反应得到C-H活化的6-Mes镍（II）配合物，但如果在Ni(PPh(3))(2)Br(2)存在的情况下进行反应，则新的三坐标Ni(I)物种Ni(6-Mes)(PPh(3))Br。Ni(I)配合物是芳基卤化物催化加氢脱卤的前体。
Reaction of the bulky 6-membered N-heterocyclic carbene 6-Mes with Ni(cod)(2) gives a C-H activated 6-Mes nickel(II) complex, but the novel three-coordinate Ni(I) species Ni(6-Mes)(PPh(3))Br if the reaction is performed in the presence of Ni(PPh(3))(2)Br(2). The Ni(I) complex is a precursor for the catalytic hydrodehalogenation of aryl halides.