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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 496869Generated: October 25, 2026

Triethylamine → tert-Butyl 2-[4-(3,4-dichlorophenoxy)-1-piperidinyl]ethylcarbamate

https://huagongshe.com/reaction/496869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantEthyl AcetateHCID 8857—
Reactant4-(3,4-Dichlorophenoxy)piperidineHCID 3732042—
Reactanttert-Butyl N-(2-bromoethyl)carbamateHCID 4103526—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Producttert-Butyl 2-[4-(3,4-dichlorophenoxy)-1-piperidinyl]ethylcarbamateHCID 2232229976.3%

Reaction Steps

The product from step (ii) (6.55 g) was dissolved in DMF (50 ml) and triethylamine (7.9 ml) was added. tert-Butyl 2-bromoethylcarbamate (4.3 g) in DMF (5 ml) was added and the solution stirred at room temperature for 3 days. Ethyl acetate and water were added, the organic phase separated, dried and evaporated to a gum. Purification by chromatography (dichloromethane:methanol 95:5) gave the sub-titled product as a gum (5.7 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06946478B2
Source datasetuspto-grants-2005_09
ORD IDord-b74a6338373d40e4b7d6bff3e299f585
Source noteuspto-grants-2005_09