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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 250047Erstellt: 23. Oktober 2026

Water → 2-Chloro-5-(cyclopentyloxy)pyrimidine

https://huagongshe.com/de/reaction/250047

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktWaterHCID 962—
EduktPotassium CarbonateHCID 11430—
EduktChlorocyclopentaneHCID 70252—
Edukt2-Chloro-5-pyrimidinolHCID 14595700—
LösungsmittelDimethylformamideHCID 6228—
Produkt2-Chloro-5-(cyclopentyloxy)pyrimidineHCID 5747655954,6%

Reaktionsbedingungen

Temperatur65 °C

Reaktionsschritte

A mixture of 2-chloropyrimidin-5-ol (1 g, 7.66 mmol), chlorocyclopentane (2.39 mL, 22.98 mmol) and potassium carbonate (3.18 g, 22.98 mmol) in N,N-dimethylformamide were heated at 65° C. for 16 h at ambient temperature. Water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with water and brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography (0-25% ethyl acetate/hexanes) to afford 2-chloro-5-(cyclopentyloxy)pyrimidine (831 mg, 4.18 mmol, 54.6% yield) as a white solid. MS (LC/MS) R.T.=2.32; [M+H]+=199.23.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS07863291B2
Quelldatensatzuspto-grants-2011_01
ORD IDord-d196ad7835c64c4ea90be1cb5b70642f
Quellennotizuspto-grants-2011_01