Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 451672Generated: October 26, 2026

Sodium hydride → (R)-tert-butyl 3-((R)-(2-(tert-butyldimethylsilyloxy)ethoxy)(3-chlorophenyl)methyl)piperidine-1-carboxylate

https://huagongshe.com/reaction/451672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant(2-Bromoethoxy)-tert-butyldimethylsilaneHCID 3608067—
Reactant1-Piperidinecarboxylic acid, 3-[(R)-(3-chlorophenyl)hydroxymethyl]-, 1,1-dimethylethyl ester, (3R)-HCID 44555022—
SolventTetrahydrofuranHCID 8028—
Product(R)-tert-butyl 3-((R)-(2-(tert-butyldimethylsilyloxy)ethoxy)(3-chlorophenyl)methyl)piperidine-1-carboxylateHCID 59201708—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a mixture of (R)-tert-butyl 3-((R)-(3-chlorophenyl)(hydroxy)methyl)piperidine-1-carboxylate (0.1964 g, 0.60 mmol, 1.0 equiv) and 60% NaH in oil (0.753 g, 18.8 mmol, 31 equiv) in THF (15 mL) was added (2-bromoethoxy)-tert-butyldimethylsilane (2.042 g, 8.5 mmol, 14 equiv). The resulting mixture was heated at 80° C. for 19 h and then quenched with water, extracted with EtOAc and dried over Na2SO4. After the solvent was removed, the crude product was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08487108B2
Source datasetuspto-grants-2013_07
ORD IDord-ba8143588d5240ffa1729f6e19ad5135
Source noteuspto-grants-2013_07