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Communication | Regular issue | Vol 26, No. 1, 1987, pp.47-50
Published online, 1st January, 1970■ Intramolecular Diels-Alder Cycloaddition of Isoxazole Derivatives Catalyzed by Brönsted Acids
Published online, 1st January, 1970
DOI: 10.3987/R-1987-01-0047
■ Intramolecular Diels-Alder Cycloaddition of Isoxazole Derivatives Catalyzed by Brönsted Acids
Alberto Brandi and Patrizio Nuti
*CNR, Centro di Studio Sulla Chimica e la Struttura dei Composti Eterociclici e lolo Applicazioni, c/o Dipartimento di Chimica Organica "Ugo Schiff", Università di Firenze, Via Gino Capponi 9, I-50121 Firenze, Italy
Abstract
Isoxazoles 3c-e undergo intramolecular Diels-Alder cycloaddition at 200°C only in CBCl3 solution or in toluene with CF3COOH catslysis.
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