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Paper | Regular issue | Vol 34, No. 2, 1992, pp.315-320
Published online, 1st January, 1970
DOI: 10.3987/COM-91-5917
Oxazolones. Part VI. Reaction of 5(4H)-Oxazolones with Nitrile Imines: Synthesis of 1H-1,2,4-Triazoles through [3+2] Cycloaddition

Maria Luisa Gelmi,* Donato Pocar, and Raul Riva

*Istituto di Chimica Organica, Facoltà di Farmacia, Università di Milano, Via Venezian 21, 20133 Milano, Italy

Abstract

5(4H)-Oxazolones (1) react as dipolarophiles in [3+2] cycloaddition with nitrile imines generated from tetrazoles (2) in refluxing anisole affording two 1H-1,2,4-triazole derivatives (3) and diarylethylenes (4).