Azides. Part VIII. Thermolysis of ethyl azidoformate in acetic and propionic anhydrides: facilitation of intramolecular cyclization of the resultant carbethoxynitrene to 2- …

NR Ayyangar, KC Brahme…

Index: Ayyangar, N. R.; Brahme, K. C.; Srinivasan, K. V. Canadian Journal of Chemistry, 1987 , vol. 65, p. 1463 - 1468

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Abstract

The thermolysis of ethyl azidoformate in acetic and propionic anhydrides as solvents yielded the corresponding N-acyl-2-oxazolidinones (2 a, b) in relatively significant yields. The other major products isolated were N-carboxyethyl-N, O-diacyl hydroxylamine (1 a, b) and N, N, O- triacetyl hydroxylamine (3), The intramolecular cyclization is facilitated by the solvent.