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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 3387Generated: October 28, 2026

Ethanol → 4-Amino-2-Ethyl-alpha-oxo-1-(phenylmethyl)-1H-indole-3-Acetamide

https://huagongshe.com/reaction/3387

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant2-(1-Benzyl-2-ethyl-4-nitro-1H-indol-3-yl)-2-oxo-acetamideHCID 10641658—
SolventTetrahydrofuranHCID 8028—
Product4-Amino-2-Ethyl-alpha-oxo-1-(phenylmethyl)-1H-indole-3-AcetamideHCID 1075812230.2%

Reaction Steps

A solution of 6.0 g (17.1 mmol) of 2-Ethyl-4-Nitro-α-oxo-1-(phenylmethyl)-1H-indole-3-acetamide in 140 ml of 1:1 THF:EtOH containing 1,0 g of 5% Pt/BaSO4 was hydrogenated at room temperature and 60 psi (4.22 Kg/cm2) for four hours. The catalyst was filtered and the filtrate evaporated in vacuo. The residue was chromatographed over silica gel eluting with Hexane/50 to 100% EtOAC to give 1.66 g (30%) of 4-Amino-2-Ethyl-α-oxo-1-(phenylmethyl)-1H-indole-3-Acetamide melting at 140°-144° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05733923
Source datasetuspto-grants-1998_03
ORD IDord-530aa127a76e4169b9ca650bd1dc8905
Source noteuspto-grants-1998_03