Pretorius, RenéRomero Fructos-Vázquez, ManuelMüller-Bunz, HelgeGossage, Robert A.Pérez Romero, Pedro JoséAlbrecht, Martin2019-05-092019-05-092016Pretorius, R., Fructos, M. R., Müller-Bunz, H., Gossage, R. A., Pérez, P. J., & Albrecht, M. (2016). Synthesis and catalytic applications of 1,2,3-triazolylidene gold(i) complexes in silver-free oxazoline syntheses and C–H bond activation. Dalton Transactions, 45(37), 14591–14602. https://doi.org/10.1039/c6dt02181f1477-92261477-9234 (electrónico)http://hdl.handle.net/10272/16241A series of novel 1,2,3-triazolylidene gold(I) chloride complexes have been synthesised and fully characterised. Silver-free methodologies for chloride ion abstraction of these complexes were evaluated for their potential as Au-based catalyst precursors. Using simple potassium salts or MeOTf as chloride scavengers produced metal complexes that catalyse both the regioselective synthesis of oxazolines and the C-H activation of benzene or styrene for carbene transfer from ethyl diazoacetate. These results indicate that Ag-free activation of 1,2,3-triazolylidene gold(I) chloride complexes is feasible for the generation of catalytically active Au triazolylidene species. However, silver-mediated activation imparts substantially higher catalytic activity in oxazoline synthesis.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/CatalystTriazolylidene complexesOrganic transformationsjournal article10.1039/c6dt02181fopen access