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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1690037Generated: November 1, 2026

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

https://huagongshe.com/reaction/1690037

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 57963245—

Reaction Steps

To 4-chloro-7H-pyrrolo[2,3-d]pyrimidine (1, 300 mg, 1.95 mmol) in 3.0 mL of ethanol, potassium hydroxide (226 mg, 4.03 mmol) was added and the reaction was microwaved at 120° C. for 3 hours. The reaction was extracted in ethyl acetate and aqueous saturated ammonium chloride. The organic layer was separated and washed with brine, then dried over magnesium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material was recrystallized with methanol to provide the desired compound (47, 213 mg). MS (ESI) [M+H+]+=164.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08153641B2
Source datasetuspto-grants-2012_04
ORD IDord-f52af7d963fa4cdda4f669ffb041765d
Source noteuspto-grants-2012_04