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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84923Generated: October 30, 2026

1,2-Dichloroethane → Tert-butyl 1-amino-4,4,4-trifluoro-1-oxobutan-2-ylcarbamate

https://huagongshe.com/reaction/84923

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantAmmonium HydroxideHCID 14923—
Reactant1-Hydroxybenzotriazole hydrateHCID 2796029—
Reactant2-(((Tert-butoxy)carbonyl)amino)-4,4,4-trifluorobutanoic acidHCID 12098057—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductTert-butyl 1-amino-4,4,4-trifluoro-1-oxobutan-2-ylcarbamateHCID 86666168—

Reaction Steps

To a solution of 2-(tert-butoxycarbonylamino)-4,4,4-trifluorobutanoic acid (370 mg, 1.43 mmol) and HOBt hydrate (264 mg, 1.72 mmol) in DMF (5 mL), EDC (332 mg, 1.72 mmol) was added. After being stirred at room temperature for 1 h, conc. NH4OH (14 N, 0.600 mL, 8.40 mmol) was added. The mixture was stirred for 18 h. Water and EtOAc were added. The organic phase was washed with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give tert-butyl 1-amino-4,4,4-trifluoro-1-oxobutan-2-ylcarbamate as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846928B2
Source datasetuspto-grants-2014_09
ORD IDord-adbd88f9e6ce40a1b2ec65437cae4257
Source noteuspto-grants-2014_09