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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2223710Generated: October 27, 2026

Diethyl Ether → [2-(4-Benzyl-piperidin-1-yl)-ethyl]-carbamic acid tert-butyl ester

https://huagongshe.com/reaction/2223710

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
Reactant4-BenzylpiperidineHCID 31738—
ReactantDiisopropylethylamineHCID 81531—
Reactanttert-Butyl N-(2-bromoethyl)carbamateHCID 4103526—
SolventTetrahydrofuranHCID 8028—
SolventEthylacetate heptaneHCID 21899848—
Product[2-(4-Benzyl-piperidin-1-yl)-ethyl]-carbamic acid tert-butyl esterHCID 59715914—

Reaction Steps

A mixture of 4-benzyl-piperidine (876 mg, 5.0 mmol), (2-bromo-ethyl)-carbamic acid tert-butyl ester (1.12 g, 5.0 mmol) and DIPEA (650 mg, 5 mmol) in THF (30 mL) is heated at reflux for 15 h. The solution is poured into ether (150 mL) and extracted with saturated Na2CO3 (2×50 mL) and brine (30 mL), dried (Na2SO4), filtered and concentrated to provide a crude oil. Flash chromatography (EtOAc/heptane: 3/2) provides the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07375227B2
Source datasetuspto-grants-2008_05
ORD IDord-81a7ef2aa908458ba4e3b397ee856c21
Source noteuspto-grants-2008_05