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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1976215Generated: November 1, 2026

Potassium Carbonate → HCID 22000662, compound

https://huagongshe.com/reaction/1976215

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant18-Crown-6HCID 28557—
Reactant3,4-Dimethoxybenzyl bromideHCID 10900458—
ReactantHCID 22000660HCID 22000660—
SolventAcetoneHCID 180—
ProductHCID 22000662HCID 2200066231.9%

Reaction Steps

3-(3,5-Dimethoxybenzyloxy)-benzene-1,2-diol (0.28 g, 1.03 mmol), 4-bromomethyl-1,2-dimethoxy-benzene (0.24 g, 1.03 mmol), potassium carbonate (0.14 g, 1.03 mmol) and 18-crown-6-ether (0.03 g, 0.11 mmol) were stirred together at room temperature in acetone (30 cm3, 99%) under nitrogen for 21 hours. The solution was evaporated under reduced pressure, and the residue was taken up in dichloromethane (10 cm3) and water (10 cm3). The aqueous layer was extracted with dichloromethane (2×10 cm3), and the combined extracts were washed with water (2×40 cm3), dried (MgSO4), and evaporated under reduced pressure. The residue was taken up in diethyl ether (30 cm3) and washed with sodium hydroxide (2×15 cm3, 3% aqueous solution). The sodium hydroxide portion was saturated with solid carbon dioxide pellets and extracted with diethyl ether (3×30 cm3). The extracts were evaporated under reduced pressure to give a crude oil. The oil was chromatographed (SiO2, heptane:ethyl acetate, 1:1) to give the phenol, (0.14 g, 31%) as a clear oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06225352B1
Source datasetuspto-grants-2001_05
ORD IDord-4222506a54f148b28f21a85c7aff8eb6
Source noteuspto-grants-2001_05