Journal of Organic Chemistry p. 3505 - 3508 (1981)
Update date:2022-08-11
Topics:
Perez, Jorge D.
Diaz, Rosario G. de
Yranzo, Gloria I.
The kinetic results from the gas-phase thermal isomerization of 5-amino-3,4-dimethylisoxazole (1), 3,5-dimethylisoxazole (2), and 3-amino-5-methylisoxazole (3) are reported.Compound 1 afforded quantitatively 3-carbamoyl-2,3-dimethyl-1-azirine (4).On the other hand, 2 and 3 gave the isomeric oxazoles 5 and 7, respectively.Different reaction pathways are discussed according to the activation parameters.
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