HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methylhydrazine → 2-methyl-4,5,6,7-tetrahydro-2H-indazol-3-amine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methylhydrazine | HCID 6061 | — |
| Reactant | 2-Oxocyclohexanecarbonitrile | HCID 220297 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 2-methyl-4,5,6,7-tetrahydro-2H-indazol-3-amine | HCID 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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09403815B2 |
| Source dataset | uspto-grants-2016_08 |
| ORD ID | ord-6a5f6d51909b408ba06cc759631d3e73 |
| Source note | uspto-grants-2016_08 |