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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2246909Generated: October 31, 2026

Potassium Iodide → 6-Hydroxymethyl-4-(3-methoxypropyl)-4H-benzo[1,4]oxazin-3-one

https://huagongshe.com/reaction/2246909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium IodideHCID 4875—
Reactant1-Chloro-3-methoxypropaneHCID 118927—
ReactantPotassium FluorideHCID 522689—
Reactant6-(Hydroxymethyl)-2H-1,4-benzoxazin-3(4H)-oneHCID 18452443—
SolventAcetonitrileHCID 6342—
Product6-Hydroxymethyl-4-(3-methoxypropyl)-4H-benzo[1,4]oxazin-3-oneHCID 53401196—

Reaction Steps

A stirred suspension of 1.79 g of 6-hydroxymethyl-4H-benzo[1,4]oxazin-3-one, 2.20 ml of 1-chlor-3-methoxypropane, 10 g of potassium fluoride on aluminium oxide and 0.033 g potassium iodide in 150 ml of acetonitrile is heated to reflux for 72 hours. The reaction mixture is allowed to cool to room temperature, filtered and concentrated under reduced pressure. The residue is purified by flash chromatography (SiO2 60 F) to afford the title compound. Rf=0.60 (dichlormethane-methanol 9:1); Rt=2.74.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07687495B2
Source datasetuspto-grants-2010_03
ORD IDord-6bed7fb5614b44d383bb869626dc1b8e
Source noteuspto-grants-2010_03