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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 361408Generated: October 31, 2026

Phosphorus tribromide → 6-(Bromomethyl)pyrido[3,2-d]pyrimidine-2,4-diamine

https://huagongshe.com/reaction/361408

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
Reactant(2,4-Diaminopyrido[3,2-d]pyrimidin-6-yl)methanolHCID 13345225—
SolventTetrahydrofuranHCID 8028—
Product6-(Bromomethyl)pyrido[3,2-d]pyrimidine-2,4-diamineHCID 13345226—

Reaction Steps

A suspension of 0.72 g (3.77 mmol) of 6 in 12 mL dry THF was stirred for 8 hours with 1 mL of phosphorus tribromide. The precipitated solid was filtered, washed with cold 50% THF-Ether, and dried to give 7. Because of the instability, this compound was not purified further. The 1HNMR showed that the majority of the solid was the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05866580
Source datasetuspto-grants-1999_02
ORD IDord-e093bf24f1634bac8f07d61b20fb14a8
Source noteuspto-grants-1999_02