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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 707472Generated: October 26, 2026

Potassium Carbonate → 9-bromo-6-(4-methoxybenzyl)pyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one

https://huagongshe.com/reaction/707472

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-Methyloxybenzyl chlorideHCID 69993—
Reactant9-bromopyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-oneHCID 136338032—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product9-bromo-6-(4-methoxybenzyl)pyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-oneHCID 8670538570%

Reaction Conditions

Temperature40 °C

Reaction Steps

1-(Chloromethyl)-4-methoxybenzene (3.10 ml, 22.9 mmol) was added to a stirred solution of 9-bromopyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one (3.02 g, 11.35 mmol) and potassium carbonate (4.71 g, 34.1 mmol) in 1-methylpyrrolidinone (60 ml) and the mixture was heated at 40° C. for 14 hours. The mixture was filtered, and the resulting solid was washed liberally with dichloromethane. The combined organics were concentrated under vacuum and the residue was triturated with ethyl acetate (40 mL) to afford 3.07 g (70%) of the benzylated product as a brown powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09175010B2
Source datasetuspto-grants-2015_11
ORD IDord-9f1f0f00d6fc48258b45a252c5d7ad14
Source noteuspto-grants-2015_11