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Communication | Regular issue | Vol 23, No. 8, 1985, pp.1893-1896
Published online, 1st January, 1970
DOI: 10.3987/R-1985-08-1893
The Revised Structure of the Thermal Rearrangement Product of 4-Benzylideneamino-3-methyl-5-styrylisoxazole

Andreina Corsico Coda, Giovanni Desimoni,* and Alessandro Coda

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


It had been claimed that the thermal rearrangement of 4-benzylideneamino-3-methyl-5-styrylisoxazol gave an isoxazolo-pyridine. This product was reinvestigated and shown to be 4-cinnamoyl-5-methyl-2-phenylimidazole, confirmed by X-ray analysis. A mechanism of formation is here proposed, involving the cleavage of the isoxazole N-O bond.