RT Journal Article
T1 Synthesis and catalytic applications of 1,2,3-triazolylidene gold(I) complexes in silver-free oxazoline syntheses and C-H bond activation
A1 Pretorius, René
A1 Romero Fructos-Vázquez, Manuel
A1 Müller-Bunz, Helge
A1 Gossage, Robert A.
A1 Pérez Romero, Pedro José
A1 Albrecht, Martin
AB A 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.
PB Dalton Transactions
SN 1477-9226
SN 1477-9234 (electrónico)
YR 2016
FD 2016
LK http://hdl.handle.net/10272/16241
UL http://hdl.handle.net/10272/16241
LA eng
NO Pretorius, 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/c6dt02181f
NO This work was financially supported by the European Research Council (CoG 615653), the European Science Foundation (COST Action CM 1205), MINECO (CTQ2014-52769-CO3-1-R), the Junta de Andalucia (P10-FQM-06292), Ryerson University (R. A. G.), and the Irish Research Council through a fellowship to. R. P. We thank Dr D. Conseco-Gonzales for the synthesis of complex 2e. We thank the group of Chemical Crystallography of the University of Bern (PD Dr P. Macchi) for the X-ray structure solution of 2f and the Swiss National Science Foundation (R'equip project 206021_128724) for co-funding the single crystal X-ray diffractometer at the department of Chemistry and Biochemistry of the University of Bern.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026