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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263098Generated: November 2, 2026

Water → HCID 86625495, compound

https://huagongshe.com/reaction/2263098

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
Reactant2,2,2-Trichloroethyl chloroformateHCID 87063—
Reactant5-Amino-2-oxindoleHCID 2773213—
SolventTetrahydrofuranHCID 8028—
SolventDimethylacetamideHCID 31374—
ProductHCID 86625495HCID 8662549587.2%

Reaction Steps

To a solution of 5-amino-1,3-dihydro-2H-indol-2-one (1.00 g, 6.75 mmol) and pyridine (1.64 ml, 20.3 mmol) in N,N-dimethylacetamide (6 ml) and tetrahydrofuran (50 ml) was added 2,2,2-trichloroethyl chloroformate (1.40 ml, 10.2 mmol) with ice-cooling, the mixture was stirred for 1 hour with ice-cooling, the reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate and the solvent was distilled off under reduced pressure to obtain the desired product (1.90 g, 87.2%) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-10a63d46cdcc4dff89abf793b4cfd19b
Source noteuspto-grants-2010_12