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首页> 外文期刊>Organometallics >A copper- and amine-free Sonogashira reaction of aryl halides catalyzed by 1,3,5-triaza-7-phosphaadamantane palladium systems
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A copper- and amine-free Sonogashira reaction of aryl halides catalyzed by 1,3,5-triaza-7-phosphaadamantane palladium systems

机译:1,3,5-三氮杂-7-磷金刚烷钯体系催化的芳基卤化物的无铜和无胺Sonogashira反应

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摘要

The monomeric complex [Pd(dmba) Cl(PTA)] [dmba = N,C-chelating 2-(dimethylaminomethyl) phenyl; PTA = 1,3,5-triaza-7-phosphaadamantane] has been obtained and its crystal structure has been established by X-ray diffraction. Conditions for an efficient copper-and amine-free catalyzed Sonogashira reaction of aryl bromides and chlorides with terminal alkynes by [Pd(dmba)Cl(PTA)] and Pd(OAc)(2)/PTA have been developed. It is worthwhile noting that a relatively low palladium catalyst loading has been employed.
机译:单体配合物[Pd(dmba)Cl(PTA)] [dmba = N,C-螯合的2-(二甲基氨基甲基)苯基;获得了PTA = 1,3,5-三氮杂-7-磷酸金刚烷],并通过X射线衍射确定了其晶体结构。已经开发了通过[Pd(dmba)Cl(PTA)]和Pd(OAc)(2)/ PTA有效地催化芳基溴化物和氯化物与末端炔烃进行无铜和无胺催化的Sonogashira反应的条件。值得注意的是,已经使用了相对较低的钯催化剂负载量。

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