Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1094642Generated: November 1, 2026

Hydroxyamine hydrochloride → HCID 86634941, compound

https://huagongshe.com/reaction/1094642

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium AcetateHCID 517045—
Reactant1-(1H-Indazol-5-yl)ethan-1-oneHCID 39103988—
SolventWater ethanolHCID 19096565—
ProductHCID 86634941HCID 8663494171%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a suspension of 1-(1H-indazole-5-yl)-ethanone (334 mg, 2.09 mmol) in EtOH-H2O (4:1, 10 ml) were added hydroxylamine hydrochloride (444 mg, 6.39 mmol) and sodium acetate (449 mg, 5.47 mmol). The reaction mixture was stirred at 80° C. for 15 hours and concentrated in vacuo. The residue was stirred with H2O at room temperature for 10 min. The solid obtained was collected by filtration, and rinsed with H2O. After drying, the title compound (260 mg, 71%) was obtained as a white solid. 1H NMR (270 MHz, DMSO-d6) δ ppm 2.22 (3H, s), 7.52 (1H, d, J=8.6 Hz), 7.79 (1H, d, J=8.6 Hz), 7.98 (1H, s), 8.10 (1H, s), 11.05 (1H, s), 13.13 (br.s, 1H). MS (ESI) m/z 176 (M+H)+, 174 (M−H)−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08134004B2
Source datasetuspto-grants-2012_03
ORD IDord-5d02676dcf72401a8c5199a8c383aa1e
Source noteuspto-grants-2012_03