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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2208120Generated: November 3, 2026

Phosphorus oxychloride → 4-chloro-2,6-dimethyl-5H-pyrrolo[3,2-d]pyrimidine

https://huagongshe.com/reaction/2208120

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
Reactant2,6-Dimethyl-1H-pyrrolo[3,2-d]pyrimidin-4(5H)-oneHCID 135725027—
SolventAcetonitrileHCID 6342—
Product4-chloro-2,6-dimethyl-5H-pyrrolo[3,2-d]pyrimidineHCID 18511061—

Reaction Steps

2,6-Dimethyl-3,5-dihydro-4H-pyrrolo[3,2-d]pyrimidin-4-one from example A6 (87.00 g; 0.53 mol) is suspended in dry acetonitrile (870 mL). After addition of POCl3 (122 mL; 1.33 mol) the stirred reaction mixture is heated to gentle reflux for 18 hours.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09376442B2
Source datasetuspto-grants-2016_06
ORD IDord-b754c72b18af465496773706eb5b0444
Source noteuspto-grants-2016_06