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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1477753Generated: November 3, 2026

Methylhydrazine → 2-methyl-4,5,6,7-tetrahydro-2H-indazol-3-amine

https://huagongshe.com/reaction/1477753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylhydrazineHCID 6061—
Reactant2-OxocyclohexanecarbonitrileHCID 220297—
SolventEthanolHCID 702—
Product2-methyl-4,5,6,7-tetrahydro-2H-indazol-3-amineHCID 52903608—

Reaction Steps

A solution of 2-oxocyclohexanecarbonitrile 16 (10 g, 81.2 mmol) and methyl hydrazine 15 (3 equiv, 11.2 g) in 150 mL of absolute ethanol was refluxed for 20 hrs and was concentrated on rotavapor to dryness. The crude product was recrystallized from methanol to afford the desired product 17. (Reference for the preparation of compound 17: J. Am. Chem. Soc. 1959, 81, 2448-2452)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09403815B2
Source datasetuspto-grants-2016_08
ORD IDord-6a5f6d51909b408ba06cc759631d3e73
Source noteuspto-grants-2016_08