Chemistry of Heterocyclic Compounds p. 884 - 886 (1990)
Update date:2022-07-29
Topics:
Vostokov, I. A.
Vasyaeva, L. V.
Maricheva, G. A.
Trub, E. P.
Treatment of mono- and diisocyanates with 3-methyl-4-alkyl(aryl)pyrazol-5-ones by heating in absolute dioxane gives the corresponding 1-carbamoylpyrazol-5-ones.Using PMR spectroscopy it has been shown that they exist in the 5-hydroxypyrazole form in DMSO,
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(1943)