Ivonin, Sergey P. published the artcileSynthesis and oxidation of all isomeric 2-(pyrazolyl)ethanols, Synthetic Route of 930-36-9, the publication is Chemistry of Heterocyclic Compounds (New York, NY, United States) (2020), 56(3), 320-325, database is CAplus.
An efficient approach to the preparation of N-substituted 2-(pyrazol-4-yl)ethanols based on recyclization reaction of 3-(dimethoxymethyl)-2-methoxytetrahydrofuran with hydrazines was described. Oxidation by KMnO4 led to 2-(pyrazol-4-yl)-2-oxoacetic acids. In contrast, 2-(pyrazol-5-yl)ethanol under similar conditions gave only pyrazole-5-carboxylic acid, which formed as a result of oxidation followed by decarbonylation. Compound 2-(pyrazol-3-yl)ethanol in this oxidation reaction gave a mixture of 2-oxo-2-(pyrazol-3-yl)acetic acid and pyrazole-3-carboxylic acid.
Chemistry of Heterocyclic Compounds (New York, NY, United States) published new progress about 930-36-9. 930-36-9 belongs to pyrazoles-derivatives, auxiliary class Pyrazole, name is 1-Methylpyrazole, and the molecular formula is C4H6N2, Synthetic Route of 930-36-9.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics