An article Chitosan@Cu2O as A Facile, Efficient and Reusable Catalyst for Ligand-Free C-O and C-N Coupling WOS:000473263100019 published article about ULLMANN-TYPE SYNTHESIS; DIARYL ETHERS; ARYL IODIDES; COPPER; NANOPARTICLES; VERSATILE; ARYLATION; PHENOLS; NANOCOMPOSITES; IMIDAZOLES in [Qian, Cunwei; Zhu, Wenqian; Liu, Junlong; Wang, Xuemin; Qiu, Ligan] Yancheng Teachers Coll, Sch Chem & Environm Engn, Yancheng 224051, Peoples R China in 2019.0, Cited 60.0. Product Details of 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8
The coupling reactions of phenols and nitrogen hetereocycles with aryl halide were catalyzed by a highly active, readily available and easily recoverable heterogeneous Cu catalyst which was prepared by simply stirring an suspension of chitosan in solvent with copper compound. The result showed that chitosan@Cu2O catalyst catalyzed the coupling reactions of aryl halides with phenols and nitrogen hetereocycles to readily give the corresponding products in moderate to excellent yields. The highly active catalyst can be reused many times without losing its catalytic activity.
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Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem