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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 220215Generated: October 30, 2026

Ethanol → 2-(5-amino-1-p-tolyl-1H-pyrazol-3-yl)-2-methylpropan-1-ol

https://huagongshe.com/reaction/220215

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant5-Hydroxy-4,4-dimethyl-3-oxopentanenitrileHCID 12044794—
Reactant1-Chloro-2-phenylhydrazineHCID 20508458—
Product2-(5-amino-1-p-tolyl-1H-pyrazol-3-yl)-2-methylpropan-1-olHCID 11118310—

Reaction Conditions

Temperature90 °C

Reaction Steps

5-hydroxy-4,4-dimethyl-3-oxopentanenitrile (0.32 g, 2.27 mmol) and 1-chloro-2-phenylhydrazine (0.361 g, 2.49 mmol) were combined in ethanol and heated at 90° C. for 8 hours. The reaction was cooled and concentrated, and the residue was triturated with ethyl acetate. The solids were collected by filtration, triturated with acetone and rinsed to isolate 36 mg of the title compound as a pure white solid. MS M+1(246).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08202899B2
Source datasetuspto-grants-2012_06
ORD IDord-728472c4e07a41d58017348cafe6c70c
Source noteuspto-grants-2012_06