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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 4322Generated: October 28, 2026

Water → 3,4-Dihydro-6-(3,4-dimethoxyphenyl)-2,3-dimethylpyrimidin-4-one

https://huagongshe.com/reaction/4322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl iodideHCID 6328—
ReactantPotassium tert-butoxideHCID 23665647—
Reactant3,4-Dihydro-6-(3,4-dimethoxyphenyl)-2-methylpyrimidin-4-oneHCID 135736174—
SolventDimethylformamideHCID 6228—
Product3,4-Dihydro-6-(3,4-dimethoxyphenyl)-2,3-dimethylpyrimidin-4-oneHCID 2015230765.3%

Reaction Steps

To a suspension of 3,4-dihydro-6-(3,4 dimethoxyphenyl)-2-methylpyrimidin-4-one (2.0 g) in N,N-dimethylformamide (20 ml) were added potassium tert.butoxide (1.08 g) and methyl iodide (1.0 ml), and stirred at ambient temperature for an hour. Resulting mixture was poured into water, and extracted with ethyl acetate. The organic layer was chromatographed on silica gel eluting with chloroform to give 3,4-dihydro-6-(3,4-dimethoxyphenyl)-2,3-dimethylpyrimidin-4-one (1.38 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04725600
Source datasetuspto-grants-1988_02
ORD IDord-6991b219f52b4e25941ed6cba7871dad
Source noteuspto-grants-1988_02