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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 527132Generated: October 25, 2026

Hydrochloric Acid → N-(7-Amino-2-hydroxy-2-(4-isopropyl-2-methoxyphenyl)-1,3-dioxo-2,3-dihydro-1H-inden-4-yl)acetamide

https://huagongshe.com/reaction/527132

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantN-(2-hydroxy-2-(4-isopropyl-2-methoxyphenyl)-7-nitro-1,3-dioxo-2,3-dihydro-1H-inden-4-yl)acetamideHCID 71476974—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
ProductN-(7-Amino-2-hydroxy-2-(4-isopropyl-2-methoxyphenyl)-1,3-dioxo-2,3-dihydro-1H-inden-4-yl)acetamideHCID 7147713271%

Reaction Steps

N-(2-hydroxy-2-(4-isopropyl-2-methoxyphenyl)-7-nitro-1,3-dioxo-2,3-dihydro-1H-inden-4-yl)acetamide (0.10 g, 0.24 mmol) was completely dissolved in anhydrous ethanol (3 ml). This solution was added with iron (0.098 g), conc. HCl (0.05 ml) and water (0.3 ml). The reaction mixture was heated for 2 hrs under reflux. After filtration at high temperature to remove iron, the filtrate was concentrated in a vacuum and purified using column chromatography (ethylacetate:hexane=1:2) to afford the title compound (65 mg, 71%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09346749B2
Source datasetuspto-grants-2016_05
ORD IDord-d5a55c45de464977b7452fcc307801d6
Source noteuspto-grants-2016_05