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A triazine-phosphite polymeric ligand bearing cage-like P, N-ligation sites: an efficient ligand in the nickel-catalyzed amination of aryl chlorides and phenols

机译:三嗪 - 亚磷酸盐聚合物配体轴承笼状P,N-连接位点:镍催化的芳基氯化物和酚胺化的有效配体

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摘要

A novel P, N-ligand was introduced for efficient Ni-catalyzed amination of aryl chlorides. Reaction of cyanuric acid (1,3,5-triazine-2,4,6-triol) and trichlorophosphine (PCl3) resulted in the production of a new porous material (TPPM) containing triazine rings with phosphite moieties in a sheet morphology. Cavities in the prepared compound create sites on the surface of the material with appropriate ligation character to coordinate with metals for catalytic purposes. The nickel-catalyzed amination of aryl chlorides and of phenols in their 2,4,6-triaryloxy-1,3,5-triazine (TAT) protected form were efficiently accomplished in the presence of this easily prepared and reusable P, N-ligand under mild reaction conditions. More importantly, TPPM was reusable for 5 iterations following this protocol without significantly decreasing in its activity.
机译:引入新型P,N-配体用于有效的芳基戊氯的芳基催化胺化。 氰尿酸(1,3,5-三嗪-2,4,6-三醇)和三氯化物(PCL3)的反应导致生产含有三嗪环的新多孔材料(TPPM)与亚磷酸盐部分在片状形态中。 制备的化合物中的空腔用适当的连接特性在材料表面上产生位点,以与金属坐标以催化目的。 在其2,4,6-三芳基氧基-1,3,5-三嗪(TAT)保护形式中,在易于制备和可重复使用的P,N-配体的情况下有效地完成碳氯酰氯和苯酚的氧化芳基和酚的酚类胺化。 在温和的反应条件下。 更重要的是,TPPM在此协议之后可重复使用5次迭代,而在其活动中不显着降低。

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