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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1850368Generated: October 30, 2026

Dimethylformamide → Benzene, 1,2,5-trimethyl-3-[(2-methyl-2-propenyl)oxy]-

https://huagongshe.com/reaction/1850368

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant2,3,5-TrimethylphenolHCID 12769—
Reactant3-Bromo-2-methyl-1-propeneHCID 357785—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductBenzene, 1,2,5-trimethyl-3-[(2-methyl-2-propenyl)oxy]-HCID 1183022996%

Reaction Conditions

Temperature80 °C

Reaction Steps

3-bromo-2-methylpropene (29.8 g, 221 mmol) was added to a mixture of DMF (130 mL) containing 2,3,5-trimethylphenol (25.0 g, 184 mmol) and potassium carbonate (50.9 g, 368 mmol), and the resulting mixture was stirred at 80° C. for 15 hours. After cooled to room temperature, the reaction solution was distributed using ethyl acetate and water. The organic layer was washed with saturated saline, and then dried using anhydrous magnesium sulfate. The solvent was removed under reduced pressure, and the obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate 50:1 to 9:1) to give 33.6 g of the title compound (yield: 96%) as an oily product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08957069B2
Source datasetuspto-grants-2015_02
ORD IDord-faab9c3e81e3446e99f5c97dc539fbfb
Source noteuspto-grants-2015_02