Macrocyclic Dinuclear Palladium Complex as a Novel Doubly Threaded [3]Rotaxane Scaffold and Its Application as a Rotaxane Cross‐Linker
作者:Koji Yamamoto、Riku Nameki、Hiromitsu Sogawa、Toshikazu Takata
DOI:10.1002/anie.202007866
日期:2020.10.5
A dinuclear PdII complex possessing a cyclic ligand was developed as a novel doubly threaded [3]rotaxane scaffold and applied as a rotaxane cross‐linker reagent. The dinuclear complex (PdMC)2 was prepared by one‐step macrocyclization followed by the double palladation reaction. 1H NMR analysis and UV/Vis measurements revealed the formation of a doubly threaded pseudo[3]rotaxane by the complexation of
具有环状配体的双核Pd II复合物被开发为新型双螺纹[3]轮烷骨架,并用作轮烷交联剂。双核复合物(PdMC)2的制备方法是一步一步环化,然后进行双palpalation反应。1 H NMR分析和UV / Vis测量表明,双金属配位使(PdMC)2与2当量的2,6-二取代吡啶3络合,形成了双螺纹假[3]轮烷。用2当量的4-乙烯基吡啶(VP)处理(PdMC)2可得到双螺纹[3]轮烷交联剂(PdMC-VP)2。在(PdMC-VP)2存在下VP和叔丁基苯乙烯的自由基共聚可提供稳定的轮烷交联聚合物(RCP)。还通过使用丙烯酸正丁酯作为单体制备了弹性RCP。与相应的共价交联聚合物相比,所获得的RCP具有更高的溶胀能力和更高的机械韧性。