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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2266696Generated: November 2, 2026

Water → HCID 46941328, compound

https://huagongshe.com/reaction/2266696

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthylene carbonateHCID 7303—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Bromo-2-methoxyphenolHCID 262234—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
ProductHCID 46941328HCID 4694132882.6%

Reaction Conditions

Temperature115 °C

Reaction Steps

Potassium carbonate (1.4 g, 10 mmol) was added to a solution of ethylene carbonate (1.8 g, 20 mmol) and 4-bromo-2-methoxyphenol (1.05 g, 5 mmol) in 5 mL of toluene under an inert atmosphere. The reaction was heated at 115° C. for 12 h. Water (50 mL) and ethyl acetate (2×100 mL) were added to the reaction mixture to stir. The organic layers were combined, dried, filtered, and evaporated to get a yellow oil residue. The residue was purified by flash chromatography (eluting with 40→45% EtOAc in hexanes) to give compound 8a as a light brown yellow oil (1 g; 4.13 mmol; 82.6% yield); MS (APCI) (M+H)+ 246. 1H NMR (400 MHz, chloroform-D) δ ppm 2.83 (t, J=6.3 Hz, 1H) 3.84 (s, 3H) 3.89-4.01 (m, 2H) 4.03-4.13 (m, 2H) 6.78 (d, J=8.3 Hz, 1H) 6.99 (d, 1H) 7.02 (d, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07858643B2
Source datasetuspto-grants-2010_12
ORD IDord-3fe4d250e1254dcfabc5aef2d73d4ae4
Source noteuspto-grants-2010_12