HETEROCYCLES

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■ Heterocycles from Nitrile Oxides. Part IV. 1,2,4,5-Oxatriazines

Ahmad Q. Hussein, Mustafa M. El-Abadelah, Hamadallah A. Hodali, Marwan R. Kamal, and Mohammed M. Aouf

*Chemistry Department, Faculty of Science, University of Jordan, Amman 11942, Jordan

Abstract

The reaction of nitrile oxides with hydrazones is found to constitute a convenient synthetic route to the hitherto unknown 4,5-dihydro-6H-1,2,4,5-oxatriazines. Elemental analysis and spectral data conform with the present oxatriazine ring system and disprove the 1,2,4-triazole structure previously assigned for such reaction products.