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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1396135Generated: November 2, 2026

Ethanol → 4-ethoxy-7H-pyrrolo[2,3-d]pyrimidine

https://huagongshe.com/reaction/1396135

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantPotassium HydroxideHCID 14797—
Reactant7H-Pyrrolo(2,3-d)pyrimidine, 4-chloro-HCID 5356682—
Product4-ethoxy-7H-pyrrolo[2,3-d]pyrimidineHCID 5796324566.9%

Reaction Conditions

Temperature120 °C

Reaction Steps

4-Chloro-7H-pyrrolo[2,3-d]pyrimidine (9, 300 mg, 1.95 mmol) is combined with 3.00 mL of ethanol (10, 51.4 mmol), then potassium hydroxide (0.226 g, 4.03 mmol) is added. The reaction is heated at 120° C. for 3 hours in a microwave, then extracted with ethyl acetate and aqueous saturated ammonium chloride. The organic layer is washed with brine, dried with magnesium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material is recrystallized from methanol to provide the desired compound (11, 213 mg). MS (ESI) [M+H+]+=164.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08901118B2
Source datasetuspto-grants-2014_12
ORD IDord-9f8945ba44a84ca1b5f3875d6fc709e1
Source noteuspto-grants-2014_12