species. Isolation of a model Pt(IV) OA product provides evidence for a Pt(II)/Pt(IV) pathway. The OA of PhI is not limited to Pt(II) IMes complexes; analogous reactions also proceed with phosphine-ligated Pt(II) dialkyl complexes, demonstrating that this reaction is feasible for a variety of electron-rich Pt(II) complexes bearing labile ligands.
我们报告了分子间芳基卤化物氧化加成(Pt(II))的一个明确的例子。(IMes)PtMe 2(L)和(IMes')PtMe(L)类型的配合物(L = SMe 2,
吡啶; IMes = N,N-双(2,4,6-三甲基苯基)
咪唑-2-亚苄基; IMes'=环
金属化的IMes)在60°C下经历分子间
碘化苯
碘(PhI),通过还原去除拟议的Pt(IV)苯基物质生产
甲苯。模型Pt(IV)OA产品的分离为Pt(II)/ Pt(IV)途径提供了证据。PhI的OA不限于Pt(II)IMes配合物;与膦连接的Pt(II)二烷基络合物也进行了类似的反应,表明该反应对于各种带有不稳定
配体的富电子Pt(II)络合物都是可行的。