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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 34065Generated: October 25, 2026

Diiodomethane → 2-Iodo-4-methyl-5-nitropyridine

https://huagongshe.com/reaction/34065

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiiodomethaneHCID 6346—
Reactant2-Amino-4-methyl-5-nitropyridineHCID 243165—
ReactantIsopentyl sulfiteHCID 22742080—
Product2-Iodo-4-methyl-5-nitropyridineHCID 23070167—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 1.0 g of 2-amino-4-methyl-5-nitropyridine in 10 mL of diiodomethane was added 1.8 mL of isopentyl sulfite at room temperature, stirred at this temperature for 30 minutes, and after raising the temperature to 80° C., the solution was stirred for 2 hours. The diiodomethane was evaporated, and the crude product was purified and separated by silica gel column chromatography (ethyl acetate:n-hexane=1:20), to afford 897 mg of the title compound as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07429609B2
Source datasetuspto-grants-2008_09
ORD IDord-4591426222324116a52532a1d4076497
Source noteuspto-grants-2008_09