RT Journal Article T1 Mechanism of Side Reactions in Alkane C-H Bond Functionalization by Diazo Compounds Catalyzed by Ag and Cu Homoscorpionate Complexes—A DFT Study A1 Braga, Ataualpa A. C. A1 Caballero Bevia, Ana A1 Urbano Baena, Juan A1 Díaz Requejo, María Mar A1 Pérez Romero, Pedro José A1 Maseras, Feliu AB DFT computational methods were applied to the mechanistic study of the formation of fumarate and maleate derivatives in a solution containing alkane, TpBr3M [M=Cu, Ag; TpBr3=hydrotris(3,4,5-tribromopyrazolyl)borate] and methyl diazoacetate. These solutions are the experimentally reported conditions for carbene insertion into alkane C-H bonds, a procedure that usually competes with a nondesired reaction, producing fumarate and/or maleate derivatives. Several mechanisms are analyzed. The preferred mechanism proceeds through a direct reaction between a metallocarbene complex intermediate and a diazo molecule. The computational results explain all of the available experimental evidence and provide important information on the behavior of these systems. PB Wiley-VCH Verlag SN 1867-3880 SN 1867-3899 (electrónico) YR 2011 FD 2011 LK http://hdl.handle.net/10272/11564 UL http://hdl.handle.net/10272/11564 LA eng NO Braga, A.A.C., Caballero Bevia, A., Urbano Baena, J., Díaz Requejo, M.M., Pérez Romero, P.J., Maseras, F.: "Mechanism of Side Reactions in Alkane C-H Bond Functionalization by Diazo Compounds Catalyzed by Ag and Cu Homoscorpionate Complexes—A DFT Study". ChemCatChem. Vol. 3, n. 10, págs. 1646–1652, (2011). DOI: 10.1002/cctc.201100082 NO Financial support from the ICIQ foundation, the Spanish MICINN (CTQ2008-06866-CO2-02/BQU, CTQ2008-00042/BQU), Consolider Ingenio 2010 (CSD2006-0003,) and the Catalan DIUE (2009SGR0259) is acknowledged. DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026