Cover Story: The new dimeric copper(II) bromide complex [Cu(LOHex)Br(μ-Br)]2 was synthesized and fully characterized in the solid state and in solution. In the crystal structure, the complex is interlinked by two bridging bromide ligands and possesses terminal bromide ligands on each copper atom. The new complex was evaluated as a catalyst in copper-catalyzed C−H oxidation for allylic functionalization through a Kharasch–Sosnovsky reaction without any external reducing agent. The general reaction time was slightly decreased, but a very significant lowering of the alkene: Luperox ratio was reached, obtaining allylic benzoates up to 90% yield. These factors make relevant improvements with respect to the classical Kharasch–Sosnovsky reaction in terms of rate and number of reagents. View this paper.
Paper highlighted on the Front Cover of Molecules, Volume 26, Issue 20 (December-2 2021): Cover Story “A New Dimeric Copper(II) Complex of Hexyl Bis(pyrazolyl)acetate Ligand as an Efficient Catalyst for Allylic Oxidations”, Molecules 2021, 26(20), 6271.
Carlo Santini;Maura Pellei
2021-01-01
Abstract
Cover Story: The new dimeric copper(II) bromide complex [Cu(LOHex)Br(μ-Br)]2 was synthesized and fully characterized in the solid state and in solution. In the crystal structure, the complex is interlinked by two bridging bromide ligands and possesses terminal bromide ligands on each copper atom. The new complex was evaluated as a catalyst in copper-catalyzed C−H oxidation for allylic functionalization through a Kharasch–Sosnovsky reaction without any external reducing agent. The general reaction time was slightly decreased, but a very significant lowering of the alkene: Luperox ratio was reached, obtaining allylic benzoates up to 90% yield. These factors make relevant improvements with respect to the classical Kharasch–Sosnovsky reaction in terms of rate and number of reagents. View this paper.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
