1427310-04-0Relevant articles and documents
Mononuclear heterocyclic rearrangement of 5-arylisoxazole-3-hydroxamic acids into 3,4-substituted 1,2,5-oxadiazoles
Potkin, Vladimiri.,Petkevich, Sergeyk.,Lyakhov, Alexanders.,Ivashkevich, Ludmilas.
, p. 260 - 264 (2013)
By a series of successive transformations, 5-arylisoxazole-3-carboxylic acids (aryl=phenyl, p-tolyl, 2,5-dimethylphenyl) have been converted into 5-arylisoxazole-3-hydroxamic acids, which undergo rearrangement by the action of aqueous KOH to form 3,4-substituted 1,2,5-oxadiazoles. The structure of one of them, 1-(2,5-dimethylphenyl)-2-(4-hydroxy-1,2,5-oxadiazol-3-yl)ethanone, has been confirmed by single crystal X-ray analysis. Georg Thieme Verlag Stuttgart New York.