Transition-metal-catalyzed reactions involving imidazolium salt/N-heterocyclic carbene couples as substrates
Transition-metal-catalyzed reactions involving imidazolium salt/N-heterocyclic carbene couples as substrates
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DOI：
10.1002/anie.200454166
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发表时间：
2004-01-01
影响因子：
16.6
通讯作者：
Cavell, KJ
中科院分区：
文献类型：
--
作者：
Clement, ND;Cavell, KJ
反应对：咪唑鎓盐在 Ni0 基催化剂存在下，在温和条件下与烯烃反应，生成 2-烷基咪唑鎓盐（参见方案，cod=1,5-环辛二烯）。该机制涉及咪唑鎓CH键与M0的氧化加成，得到(卡宾)MH中间体，最后通过还原消除在卡宾和烷基配体之间形成键。
Reactive Couples: Imidazolium salts react with alkenes under mild conditions in the presence of a Ni0-based catalyst to produce 2-alkyl imidazolium salts (see scheme, cod=1,5-cyclooctadiene). The mechanism involves oxidative addition of an imidazolium CH bond to M0 to give a (carbene)MH intermediate and finally bond formation between the carbene and an alkyl ligand through reductive elimination.