: A silver(I) catalyzed regioselective trifluoromethylation of allenes using Langlois's salt (NaOSOCF3 ) is demonstrated. This transformation enables direct expedient access to α-trifluoromethylated acroleins, which are valuable synthons for a number of pharmaceuticals and agrochemicals containing vinyl-CF3 moieties. Versatility of this trifluoromethylation method has been established with good yield and excellent regioselectivity. Preliminary experiments and computational studies were carried out to elucidate the mechanistic insight of this protocol.
Brochetta, Massimo;Borsari, Tania;Gandini, Andrea;Casali, Emanuele;Zanoni, Giuseppe
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