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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 657957Generated: October 25, 2026

Ethyl Bromide → 1-(3-Cyclohexylmethoxy-5-ethoxyphenyl)ethanone

https://huagongshe.com/reaction/657957

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl BromideHCID 6332—
ReactantSodium hydrideHCID 24758—
Reactant3',5'-DihydroxyacetophenoneHCID 103993—
ReactantCyclohexane, (bromomethyl)-HCID 137636—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product1-(3-Cyclohexylmethoxy-5-ethoxyphenyl)ethanoneHCID 58136836—

Reaction Conditions

Temperature50 °C

Reaction Steps

1-(3,5-Dihydroxyphenyl)ethanone (1.0 g) and ethyl bromide (0.531 ml) were dissolved at RT in DMF (20 ml), and sodium hydride (189 mg) was added. After stirring at 50° C. for 2 h, cyclohexylmethyl bromide (1.36 ml) was added, followed by further sodium hydride (315 mg). After stirring at 50° C. for another 2 h, the DMF was drawn off and the residue was taken up in EA, washed with water, dried, filtered and concentrated. The residue was purified using silica gel (80 g cartridge, n-heptane/EA gradient of 0-20% within 60 min). 378 mg of the title compound were obtained. LC-MS rt: 2.07 min [M+H]+: 277.2 (met. a)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08076336B2
Source datasetuspto-grants-2011_12
ORD IDord-e275a218a41f4808bbf6655c54439571
Source noteuspto-grants-2011_12