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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 388561Generated: October 29, 2026

Methyl iodide → 4-(5-Isopropoxy-2-methyl-4-nitro-phenyl)-1-methyl-pyridinium iodide

https://huagongshe.com/reaction/388561

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
Reactant5-Methyl-2-isopropyloxy-4-(pyridine-4-YL)-nitrobenzeneHCID 59764545—
SolventTetrahydrofuranHCID 8028—
Product4-(5-Isopropoxy-2-methyl-4-nitro-phenyl)-1-methyl-pyridinium iodideHCID 67071170—

Reaction Conditions

Temperature40 °C

Reaction Steps

4-(5-Isopropoxy-2-methyl-4-nitro-phenyl)-pyridine (Example 7, Step 1, 217 mg, 0.797 mmol) is dissolved in anhydrous THF (9 mL). Iodomethane (0.10 mL, 1.61 mmol, 2 equiv.) is added and the reaction is stirred at 40° C. in a sealed tube for 2 days. The volatiles are removed under vacuum generating 4-(5-Isopropoxy-2-methyl-4-nitro-phenyl)-1-methyl-pyridinium iodide as a brown solid: ESMS m/z 287.1 (M+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08377921B2
Source datasetuspto-grants-2013_02
ORD IDord-58051922a277400e96ae5809684f1aa8
Source noteuspto-grants-2013_02