镍（I）和镍（II）环扩大的 N-杂环卡宾配合物：C-H 活化、吲哚消除和催化脱卤反应。
Ni(I) and Ni(II) ring-expanded N-heterocyclic carbene complexes: C-H activation, indole elimination and catalytic hydrodehalogenation.
机构信息
Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
出版信息
Chem Commun (Camb). 2010 Jul 28;46(28):5151-3. doi: 10.1039/c0cc01335h. Epub 2010 Jun 18.
PMID:20559596
Abstract
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.
摘要
大位阻的六元 N-杂环卡宾 6-Mes 与 Ni(cod)(2)反应生成 C-H 活化的 6-Mes 镍(II)配合物，但如果反应在 Ni(PPh(3))(2)Br(2)存在下进行，则得到新型的三配位 Ni(I)物种 Ni(6-Mes)(PPh(3))Br。该 Ni(I)配合物是芳基卤化物催化氢卤化反应的前体。
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