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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1716704Generated: November 1, 2026

Methyl iodide → 6-Bromo-1-methyl-1H-indole

https://huagongshe.com/reaction/1716704

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantSodium hydrideHCID 24758—
Reactant6-BromoindoleHCID 676493—
SolventDimethylformamideHCID 6228—
Product6-Bromo-1-methyl-1H-indoleHCID 15546854—

Reaction Steps

To a solution of 6-bromo-1H-indole (2.5 g, 12.8 mmol) in DMF (10 ml) was slowly added NaH (354 mg, 14.0 mmol) at room temperature. The resulting mixture was stirred for 20 min at RT after which MeI (956 μl, 15.4 mmol) was added. The mixture was stirred for 1 hour at room temperature and then partitioned between DCM and brine. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated to provide 6-Bromo-1-methyl-1H-indole CXLII in quantitative yield (2.7 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07803830B2
Source datasetuspto-grants-2010_09
ORD IDord-b38922370cf447c8b181b668f8ba4694
Source noteuspto-grants-2010_09