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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641923Generated: October 30, 2026

Methyl iodide → 5-Bromo-2-methyl-8-nitroisoquinolin-2-ium iodide

https://huagongshe.com/reaction/641923

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
Reactant5-Bromo-8-nitroisoquinolineHCID 816983—
SolventDimethylformamideHCID 6228—
Product5-Bromo-2-methyl-8-nitroisoquinolin-2-ium iodideHCID 53446332—

Reaction Conditions

Temperature40 °C

Reaction Steps

Into a 500 mL round bottom flask, was placed a solution of 5-bromo-8-nitroisoquinoline (25.59 g, 101.11 mmol) in DMF (200 mL). To the mixture was added iodomethane (71.8 g, 505.99 mmol). The resulting solution was allowed to react, with stirring, overnight while the temperature was maintained at 40° C. A filtration was performed. The filter cake was washed 2 times with 250 mL of ether. This resulted in 33.33 g (83%) of 5-bromo-8-nitro-N-methylisoquinolinium iodide as a red solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07696229B2
Source datasetuspto-grants-2010_04
ORD IDord-39c719e9a6404df1996d34584b241dea
Source noteuspto-grants-2010_04