Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 980107Generated: October 30, 2026

Hydrazine → HCID 178441179, compound

https://huagongshe.com/reaction/980107

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantPentanenitrile, 4,4-dimethyl-3-oxo-HCID 108871—
SolventEthanolHCID 702—
ProductHCID 178441179HCID 178441179—

Reaction Steps

The ketone thus formed was dissolved in 150 ml of ethanol containing 32 g of hydrazine. The reaction mixture was heated at reflux for twelve hours, and then cooled to room temperature. Removal of the solvent by evaporation under reduced pressure provided a solid residue, which when triturated with 250 ml of petroleum ether, filtered and air dried, was identified as 12.5 g of 3-tert.-butyl-5-amino-1H-pyrazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04636243
Source datasetuspto-grants-1987_01
ORD IDord-155bf947667d494ba3db44d9a44c7401
Source noteuspto-grants-1987_01