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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 532469Generated: October 30, 2026

Phosphorus oxychloride → 4-chloro-5H-pyrrolo[3,2-d]pyrimidine

https://huagongshe.com/reaction/532469

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
Reactant9-DeazahypoxanthineHCID 135488881—
Product4-chloro-5H-pyrrolo[3,2-d]pyrimidineHCID 5370695—

Reaction Steps

To 3,5-dihydropyrrolo[3,2-d]pyrimidin-4-one (1.8 g), POCl3 (5 mL) was added, and refluxed while stirring. After completion of the reaction, the reaction mixture was distilled under reduced pressure to remove POCl3. Then, the reaction mixture was mixed with ethyl acetate, washed with saturated sodium bicarbonate and washed with a saline solution. The washed mixture was dried over anhydrous sodium sulfate, and filtered and distilled under reduced pressure to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853213B2
Source datasetuspto-grants-2014_10
ORD IDord-97dcda288a1e498bbeec3d35753774fa
Source noteuspto-grants-2014_10