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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 553682Generated: October 30, 2026

Methyl iodide → Ethyl 2-(4-bromophenyl)propanoate

https://huagongshe.com/reaction/553682

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantLithium HexamethyldisilazideHCID 2733832—
ReactantEthyl 2-(4-bromophenyl)acetateHCID 7020609—
SolventTetrahydrofuranHCID 8028—
ProductEthyl 2-(4-bromophenyl)propanoateHCID 13840376—

Reaction Conditions

Temperature-78 °C

Reaction Steps

To ethyl 4-bromophenylacetate (2.137 g, 8.8 mmol) in THF (20 mL) at −78° C. was added lithium bis(trimethylsilyl)amide (1M in hexane; 11.4 mL, 11.4 mmol), and the solution was stirred for 1 hour at −78° C. Iodomethane (0.71 mL, 11.4 mmol) in THF (5 mL) was added, and the reaction was warmed to room temperature. The mixture was quenched with water and concentrated. The residue was dissolved in EtOAc and washed three times with water and once with brine. The organic layer was dried and concentrated, and the crude material was purified by silica gel chromatography (0-60% EtOAc in hexanes) to give 2-(4-bromo-phenyl)-propionic acid ethyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08048902B2
Source datasetuspto-grants-2011_11
ORD IDord-c0b7bf1678a842dab93e77500fab5897
Source noteuspto-grants-2011_11