Amination of CF3-enones with nosyloxycarbamates |
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Authors: | Colantoni Daniele Fioravanti Stefania Pellacani Lucio Tardella Paolo A |
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Institution: | Dipartimento di Chimica, Università degli Studi "La Sapienza", P.le Aldo Moro 2, I-00185 Roma, Italy. |
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Abstract: | CF3-enones showed a different reactivity in amination reactions with nosyloxycarbamates. 4-Oxazolines or vinyl carbamates were obtained as unique products depending on the nature of double-bond substituents and on the choice of carbamates and bases. Starting from trans-trifluoroacetyl olefins carrying a heterocyclic residue or the p-methoxyphenyl group on the double bond, a rare loss of CF3CO was observed when the aminations were performed under heterogeneous conditions using CaO as the base. |
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