Browsing by Subject "Nickel"
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- PublicationOpen AccessLigand-controlled regiodivergent catalytic amidation of unactivated secondary alkyl bromides(American Chemical Society, 2021-08-02) Tortajada, Andreu; Menezes Correia, Jose Tiago; Serrano, Eloisa; Monleón, Alicia; Tampieri, Alberto; Day, Craig S.; Juliá Hernández, Francisco; Martin, Ruben; Química InorgánicaA regiodivergent Ni-catalyzed amidation of unactivated secondary alkyl bromides is described. The site-selectivity of the amidation event is dictated by subtle differences on the ligand backbone, allowing introduction of the amide function at either the original sp3 carbon−halide bond or at distal sp3 C−H sites within an alkyl side-chain via chain-walking scenarios.
- PublicationOpen AccessSite-selective, remote sp3 C−H carboxylation enabled by the merger of photoredox and nickel catalysis(Wiley, 2019-06-06) Sahoo, Basudev; Bellotti, Peter; Juliá Hernández, Francisco; Meng, Qing-Yuan; Crespi, Stefano; König, Burkhard; Martin, Ruben; Química InorgánicaA photoinduced carboxylation of alkyl halides with CO2 at remote sp3 C@H sites enabled by the merger of photoredox and Ni catalysis is described. This protocol features a predictable reactivity and site selectivity that can be modulated by the ligand backbone. Preliminary studies reinforce a rationale based on a dynamic displacement of the catalyst throughout the alkyl side chain.
- PublicationOpen AccessTransition-metal-catalyzed carboxylation reactions with carbon dioxide(Wiley, Gesellschaft Deutscher Chemiker, 2018-03-03) Tortajada, Andreu; Juliá Hernández, Francisco; Börjesson, Marino; Moragas, Toni; Martin, Ruben; Química Inorgánica