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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 422010Generated: October 26, 2026

Triethylamine → 1-(3-nitro-phenyl)-3-(2-oxo-2,3-dihydro-1H-indol-6-yl)-urea

https://huagongshe.com/reaction/422010

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant3-Nitrophenyl isocyanateHCID 76835—
Reactant6-Amino-1,3-dihydro-2H-indol-2-oneHCID 590538—
SolventTetrahydrofuranHCID 8028—
Product1-(3-nitro-phenyl)-3-(2-oxo-2,3-dihydro-1H-indol-6-yl)-ureaHCID 59804291—

Reaction Steps

To a solution of 6-amino-1,3-dihydro-indol-2-one (0.15 g, 1.0 mmol) and triethylamine (0.30 g, 3.0 mmol) in THF (10 ml) is added 1-isocyanato-3-nitro-benzene (0.16 g, 1.0 mmol). The reaction is stirred at room temperature for 1 hour and the precipitate is collected by vacuum filtration and washed with ethanol to give the desired compound as a light yellow solid. LC-MS: 313.1 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08101608B2
Source datasetuspto-grants-2012_01
ORD IDord-3fb6933e45c34b63b5d2d4dd63befc29
Source noteuspto-grants-2012_01