Synthesis and Characterization of 3,5-Bis(di-tert-butylphosphinito)pyridine Pincer Complexes,Organometallics

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Synthesis and Characterization of 3,5-Bis(di-tert-butylphosphinito)pyridine Pincer Complexes
Organometallics ( IF 2.5 ) Pub Date : 2020-07-01 , DOI: 10.1021/acs.organomet.0c00270
Nicholas A. Swisher ₁ , Robert H. Grubbs ₁

Affiliation

The synthesis of some “reverse pyridine” bis(phosphinite) pincer complexes of nickel and rhodium is reported. N-Functionalization of a POCOP ligand with a borane Lewis acid was found to permit cyclometalation with metal precursors, which reacted with the free base ligand in an undesired manner. Convenient removal of the coordinated Lewis acid was accomplished using polymer-supported 4-dimethylaminopyridine. The effects of borane Lewis acid coordination on the physical and spectroscopic properties of the pincer complexes were also assessed.

中文翻译：

3,5-双（二叔丁基膦基）吡啶钳配合物的合成与表征

报道了一些镍和铑的“反向吡啶”双（次膦酸酯）钳配合物的合成。发现用硼烷路易斯酸对POCOP配体进行N-官能化可以与金属前体进行环金属化，所述金属前体以不希望的方式与游离碱配体反应。使用聚合物负载的4-二甲基氨基吡啶可方便地除去配位的路易斯酸。还评估了硼烷路易斯酸配位对钳形复合物的物理和光谱性质的影响。

更新日期：2020-07-13

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