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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2201150Generated: October 27, 2026

1,2-Dichloroethane → 1-Tert-butoxycarbonylamino-1-cyclopentanecarboxamide

https://huagongshe.com/reaction/2201150

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantAmmonium HydroxideHCID 14923—
Reactant1-tert-Butoxycarbonylaminocyclopentanecarboxylic acidHCID 2734645—
Reactant1-Hydroxybenzotriazole hydrateHCID 2796029—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product1-Tert-butoxycarbonylamino-1-cyclopentanecarboxamideHCID 1068086759.1%

Reaction Steps

To a solution of N-Boc-1-amino-1-cyclopentane carboxylic acid (518 mg, 2.26 mmol) and HOBt hydrate (416 mg, 2.71 mmol) in DMF (5 mL), EDC (522 mg, 2.71 mmol) was added. After being stirred at room temperature for 1 h, conc. NH4OH (14 N, 0.900 mL, 12.6 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-carbamoylcyclopentylcarbamate (305 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09359375B2
Source datasetuspto-grants-2016_06
ORD IDord-ecafee7988e44ff7bf4132038c808778
Source noteuspto-grants-2016_06