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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 468775Generated: October 25, 2026

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

https://huagongshe.com/reaction/468775

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 numberUS08623889B2
Source datasetuspto-grants-2014_01
ORD IDord-05c1b26336814a56bb93b2fd05f30a60
Source noteuspto-grants-2014_01