Browsing Artículos by Author "Delso, Ignacio"
Now showing items 1-2 of 2
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Racemic hemiacetals as oxygen-centered pronucleophiles triggering cascade 1,4-addition/ Michael reaction through dynamic kinetic resolution under iminium catalysis. Development and mechanistic insights
Orue Dañobeitia, Ane; Uria Pujana, Uxue ; Roca-López, David; Delso, Ignacio; Reyes Martín, Efraim; Carrillo Fernández, María Luisa ; Merino, Pedro; Vicario Hernando, José Luis (Royal Society of Chemistry, 2017-04-01)2-Hydroxydihydropyran-5-ones behave as excellent polyfunctional reagents able to react with enals through oxa-Michael/Michael process cascade under the combination of iminium and enamine catalysis. These racemic hemiacetalic ... -
Regioselectivity Change in the Organocatalytic Enantioselective (3+2) Cycloaddition with Nitrones Through Cooperative Hydrogen-Bonding Catalysis/Iminium Activation.
Prieto Aretxabaleta, Liher ; Juste-Navarro, Veronica; Uria Pujana, Uxue ; Delso, Ignacio; Reyes Martín, Efraim; Tejero, Tomás; Carrillo Fernández, María Luisa ; Merino, Pedro; Vicario Hernando, José Luis (Wiley-VCH, 2017-01-12)The reaction of nitrones with enals through iminium activation can be modulated by using cooperative hydrogen-bonding catalysis to induce the participation of a nitrone ylide (C-N-C) instead of the classical C-N-O dipole. ...