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Copper-induced ammonia N-H functionalization

机译:铜诱导的氨氮功能化

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摘要

The activation of ammonia has been achieved with the aid of the Tp(Ms)Cu core (Tp(Ms) = hydrotris( 3-mesityl-pyrazolyl) borate). Complexes of the general composition TpMsCu(amine) (1-4) including the ammonia adduct Tp(Ms)Cu(NH3) (1) have been synthesized and fully spectroscopical- and structurally characterized. Coordinated ammonia in 1 has been reacted with Ph3CPF6 yielding TpMsCu(NH2CPh3) (5) as a result of N-H cleavage and N-C bond formation. In a parallel manner the catalytic functionalization of ammonia with ethyl diazoacetate leading to glycinate derivatives has been developed with TpMsCu(THF) as the catalyst, in the first example of this transformation with ammonia and a copper-based system.
机译:氨的活化已经通过Tp(Ms)Cu核(Tp(Ms)=氢三(3-甲磺酰基-吡唑基)硼酸酯)实现。合成了具有氨加合物Tp(Ms)Cu(NH3)(1)的一般组成TpMsCu(胺)(1-4)的配合物,并对其进行了全光谱和结构表征。由于N-H裂解和N-C键形成,1中的配位氨已与Ph3CPF6反应生成TpMsCu(NH2CPh3)(5)。在以氨和铜基体系进行的这种转化的第一个实例中,已经以TpMsCu(THF)为催化剂,以平行的方式用重氮乙酸乙酯将氨催化官能化生成甘氨酸衍生物。

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