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Paper | Regular issue | Vol 29, No. 10, 1989, pp.1965-1972
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5086
On the Nitration of 5-Phenyl- and 3-Methyl-5-phenylisoxazoles

Stefano Chimichi* and Barbara Cosimelli

*Dipartimento di Chimica Organica "Ugo Schiff", Università di Firenze, Via Gino Capponi 9, I-50121 Firenze, Italy

Abstract

The nitration of the title compounds 1 and 2 with HNO3-H2SO4 was reexamined; 4-nitro-5-phenylisoxazole (3) and 3-methyl-4-nitro-5-phenylisoxazole (4) were obtained by treatment of 1 and 2 with HNO3 in acetic anhydride under miid conditions.