The C(sp3)–H bond oxygenation of a variety of cyclopropane containing hydrocarbons with hydrogen peroxide catalyzed by manganese complexes containing aminopyridine tetradentate ligands was carried out. Oxidations were performed in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) and 2,2,2-trifluoroethanol (TFE) using different manganese catalysts and carboxylic acid co-ligands, where steric and electronic properties were systematically modified. Functionalization selectively occurs at the
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Category: Miquel Costas news
Last 20th March the Chemistry Department of the University of Girona opened its doors and gives the opportunity to high-school students to know our work through experimental workshops. This provides the secondary school pupils the possibility to get a feel for the research and have real-time chemistry in their hands. Some IQCC members have participated (Prof. Miquel
Precise control of substrate positioning and orientation (its proximity to the reactive unit) is often invoked to rationalize the superior enzymatic reaction rates and selectivities when compared to synthetic models. Artificial nonheme iron (IV) oxo (Fe(IV)=O) complexes react with C(sp3)-H bonds via a biomimetic Hydrogen Atom Transfer/Hydroxyl Rebound mechanism, but rates, site-selectivity and even hydroxyl
8th of March is International Women’s Day. The IQCC has currently a rather favourable balance in gender ratio of staff members, both at the Master level (54%), PhD level (47%), postdocs (17%) and permanent researchers staff (29%). Notably, out of the 4 most recent permanent members, 2 are men and 2 are women, reinforcing one
Marc Garcia-Borràs receives Marcial Moreno-Mañas Award 2023 for young researchers of RSEQ-Cat This week the Real Sociedad Española de Química (RSEQ) announced that Dr. Marc Garcia-Borràs, Ramón y Cajal fellow at the Institut de Química Computacional i Catàlisi (IQCC) of the UdG, received the Marcial Moreno-Mañas Award 2023, for his scientific career of quality and excellence. The Marcial Moreno-Mañas Prize for Young Investigators
Last month (February 25-27, 2024) took place the XIV Spanish-Italian Symposium on Organic Synthesis in Torino (Italy), which included a poster session. Filippo Scarchilli, PhD student under the supervision of Prof. Miquel Costas, presented a poster titled “Highly selective C(sp3)–H bond oxygenation at remote methylenic sites enabled by polarity enhancement”, and won one of the poster prizes.
Yesterday the Italian Chemical Society (SCI) announced that Miquel Costas, full professor at the Institut de Química Computacional i Catàlisi (IQCC) of the UdG, received the Ciamician-González Lectureship 2023 award. This award recognizes his outstanding scientific contributions between Organic Chemistry, Inorganic Chemistry and Applied Catalysis. His studies improve the role and the potential of first-row transition metals in the
Arenes are interesting feedstocks for organic synthesis because of their natural abundance. However, the stability conferred by aromaticity severely limits their reactivity, mostly to reactions where aromaticity is retained. Methods for oxidative dearomatization of unactivated arenes are exceedingly rare but particularly valuable because the introduction of Csp3–O bonds transforms the flat aromatic ring in 3D
On May 1 st 2023, Dr. Marco Galeotti started his MSCA postdoctoral project entitled Implementing Cationic Paths in Aliphatic C-H Oxidation (ICAT-PACHO), under the supervision of Prof. Miquel Costas at the Institute of Computational Chemistry and Catalysis (IQCC) of University of Girona (UdG). This 2-year fellowship will allow Dr. Marco Galeotti to start a new project devoted to the study of
A detailed study on the C(sp3)–H bond oxygenation reactions with H2O2 catalyzed by the [Mn(OTf)2(TIPSmcp)] complex at methylenic sites of cycloalkyl and 1-alkyl substrates bearing 19 different electron-withdrawing functional groups (EW FGs) was carried out. Oxidations in MeCN were compared to the corresponding ones in the strong hydrogen bond donating (HBD) solvents 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) and nonafluoro tert-butyl