Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2201155Generated: October 28, 2026

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

https://huagongshe.com/reaction/2201155

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 numberUS09359375B2
Source datasetuspto-grants-2016_06
ORD IDord-ffa5923979cc400b98370c7e567144c1
Source noteuspto-grants-2016_06