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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1512745Generated: November 4, 2026

Hydroxyamine hydrochloride → HCID 178470832, compound

https://huagongshe.com/reaction/1512745

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium BicarbonateHCID 516892—
Reactantethyl 3-(5-cyano-1H-indol-2-yl)propanoateHCID 67025284—
SolventEthanolHCID 702—
ProductHCID 178470832HCID 17847083296.8%

Reaction Conditions

Temperature50 °C

Reaction Steps

Hydroxylamine hydrochloride (121 mg) and sodium bicarbonate (293 mg) was added to a solution of ethyl 3-(5-cyano-1H-indol-2-yl)propanoate (D30) (200 mg) in EtOH (15 mL), in that sequence. The reaction mixture was heated to 50° C. and stirred for 72 hours at that temperature. Another portion of hydroxylamine hydrochloride (60 mg) was added, followed by addition of sodium bicarbonate (150 mg). The resulting suspension was stirred at 50° C. for 24 hours. The inorganics was filtered off. The solid was washed with dichloromethane. The filtrate was concentrated to afford a pale yellow oil. Trituration of the residue provided ethyl 3-{5-[(hydroxyamino)(imino)methyl]-1H-indol-2-yl}propanoate (D31) (220 mg) as a pale yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08217028B2
Source datasetuspto-grants-2012_07
ORD IDord-eada1423e27a4f69bc4f3118cce4385f
Source noteuspto-grants-2012_07