Syntheses of heterocyclic compounds, part XXI. Oxazoles from pyrolysis of aryl and heterocyclic azides in a mixture of acetic and polyphosphoric acid
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- p. 1937-1940
- https://doi.org/10.1039/j39680001937
Abstract
Pyrolysis of 2-azido-naphthalene, -anthraquinone, and various azido-heterocycles in a mixture of polyphosphoric and acetic acid results in fusion of an oxazolo-moiety on to the parent system. The scope of this convenient oxazole synthesis in its widest sense is discussed.Keywords
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