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WCl6/DMF as a new reagent system for the phosphine-free Pd(0)-catalyzed aminocarbonylation of aryl halides

机译:WCl6 / DMF作为无膦Pd(0)催化的芳基卤化物氨基羰基化的新试剂系统

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摘要

WCl6 in dimethyl formamide (DMF) is introduced as a new reagent system for aminocarbonylation of aryl halides in the presence of PdCl2 as pre-catalyst without any phosphorous ligand. Aryl iodides, bromides as well as chlorides were efficiently converted to their corresponding N, N-dimethyl amides in good to high yields. In this protocol, WCl6/DMF is responsible for the generation of both Pd(0) catalyst as well as the formation of a Vilsmeier imminium type intermediate.
机译:引入二甲基甲酰胺(DMF)中的WCl6作为一种新的试剂系统,用于在没有任何磷配体的PdCl2作为预催化剂存在下芳基卤化物的氨基羰基化。芳基碘化物,溴化物和氯化物可以高产率或高产率有效地转化为其相应的N,N-二甲基酰胺。在此协议中,WCl6 / DMF负责Pd(0)催化剂的生成以及Vilsmeier亚胺型中间体的形成。

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