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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1502293Generated: October 31, 2026

Dimethylformamide → 2-(4-Bromophenyl)-1-methylpyrrolidine

https://huagongshe.com/reaction/1502293

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
Reactant2-(4-Bromophenyl)pyrrolidineHCID 4281494—
SolventEthyl AcetateHCID 8857—
Product2-(4-Bromophenyl)-1-methylpyrrolidineHCID 28489744.2%

Reaction Steps

To a mixture of 2-(4-bromophenyl)pyrrolidine (231.9 mg, 1.026 mmol) and potassium carbonate (216.6 mg, 1.567 mmol) was added N,N-dimethylformamide (4.0 mL, 52 mmol) and methyl iodide (77 uL, 1.2 mmol). The reaction mixture was stirred at room temperature for 2 days and then methyl iodide (39.0 uL, 0.626 mmol) was added. After stirring at room temperature for an additional two hours, the reaction mixture was poured into ethyl acetate and washed three times with 2M aqueous Na2CO3. The ethyl acetate layer was then dried over MgSO4, filtered, and evaporated in vacuo to yield 108.9 mg (44%) of 2-(4-bromophenyl)-1-methylpyrrolidine. LCMS (ESI): M+H=240.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09206175B2
Source datasetuspto-grants-2015_12
ORD IDord-55dc859592da41c18530f63851e47fba
Source noteuspto-grants-2015_12