Ugi post-condensation copper-triggered oxidative cascade towards pyrazoles
Résumé
Pyrazolidinones were prepared in a two-step sequence starting from a-hydrazonocarboxylic acids. After a four-component Ugi coupling, the resulting hydrazone was engaged in a copper triggered [3 + 2] cycloaddition/aerobic oxidation cascade. © 2011 Santos et al; licensee Beilstein-Institut.
Domaines
Chimie organiqueOrigine | Fichiers éditeurs autorisés sur une archive ouverte |
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