2-Aryl-2-oxazolin-4-ones (I) react with hydrazine hydrate to yield 5-substituted-3-Hydroxymethyl-1,2,4-triazoles (II). 2-Aryl-2-oxazolin-4-ones and monosubstituted hydrazines give 1,3-disubstituted-5-hydroxymethyl-1,2,4-triazoles (III). These are compared with the known 1,5-disubstituted-3-hydroxymethyl-1,2,4-triazoles (IV).
E. J. Browne, E. E. Nunn and J. B. Polya, J. Chem. Soc. C, 1970, 1515 DOI: 10.1039/J39700001515
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