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Communication | Special issue | Vol 40, No. 2, 1995, pp.515-520
Published online, 1st January, 1970
DOI: 10.3987/COM-94-S70
A Pericyclic Cascade in the Addition of Diphenyl Nitrile Imine to Pyridine

Pierluigi Caramella, Anna Gamba Invernizzi, Eros Pastormerlo, Paolo Quadrelli, and Antonino Corsaro

*Dipartamento di Chimica Organica, Università de Pavia, V. le Taramelli 10, 27100 Pavia, Italy

Abstract

On refluxing in benzene in the presence of excess pyridine monocycloadduct of diphenyl nitrile imine to pyridine smoothly undergoes a [1,5] sigmatropic shift and a subsequent electrocyclic opening to afford 1,2,4-triazole derivatives.