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Porous [Ru(bpy)3]2+-Cored Metallosupramolecular Polymers: Preparation and Recyclable Photocatalysis for the Formation of Amides and 2-Diazo-2-phenylacetates
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2020-09-17 , DOI: 10.1021/acsapm.0c00800
Zhong-Zheng Gao 1 , Yan-Yan Xu 1 , Ze-Kun Wang 1 , Hui Wang 1 , Dan-Wei Zhang 1 , Zhan-Ting Li 1
Affiliation  

A covalently bonded three-dimensional [Ru(bpy)3]2+-cored metallosupramolecular polymer (MSP-CB[8]-c) has been prepared from a noncovalently bonded metallosupramolecular polymer (MSP-CB[8]-nc) through cucurbit[8]uril (CB[8])-promoted [2 + 2] photodimerization of the ethylene units. Both MSPs function well as heterogeneous photocatalysts for visible light-induced amidation of aromatic amines with potassium thioacetate and the C–H diazomethylation of arenes with a benziodoxolone, and MSP-CB[8]-c exhibits increased catalytic activity than MSP-CB[8]-nc or a CB[8]-free metallosupramolecular polymer (MSP-c). For both kinds of reactions, the catalytic activity of the [Ru(bpy)3]2+ unit of MSP is comparable with that obtained by homogeneous prototypic Ru(bpy)3Cl2 or Ru(bpy)3(PF6)2 due to its porosity but allows for remarkable recyclability and can be reused 12 times while maintaining a considerable activity.

中文翻译:

多孔[Ru(bpy)3 ] 2+核金属超分子聚合物:酰胺和2-重氮-2-苯基乙酸酯的形成的制备和可回收光催化

共价键合的三维的[Ru(联吡啶)3 ] 2+ -cored metallosupramolecular聚合物(MSP-CB [8] -c)已经从非共价结合metallosupramolecular聚合物(制备MSP-CB [8] -NC)通过葫芦[8]尿素(CB [8])促进乙烯单元的[2 + 2]光二聚。两种MSP均能很好地用作多相光催化剂,用于可见光诱导的芳族胺与硫代乙酸钾的酰胺化酰胺化反应以及芳基苯并恶唑烷酮的CH重氮甲基化反应,MSP-CB [8] -c的催化活性高于MSP-CB [8] ] -nc不含CB [8]的金属超分子聚合物(MSP-c)。对于这两种类型的反应,所述的催化活性的[Ru(联吡啶)3 ] 2+ MSP的单元是与均相原型的Ru(联吡啶)得到可比32或Ru(联吡啶)3(PF 62,由于保持其多孔性,但具有出色的可回收性,可以重复使用12次,同时保持相当大的活​​性。
更新日期:2020-11-13
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