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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1034935Generated: October 25, 2026

Trimethylsilyldiazomethane → Methyl 4-iodo-2-methoxynicotinate

https://huagongshe.com/reaction/1034935

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethylsilyldiazomethaneHCID 167693—
Reactant4-Iodo-2-methoxypyridine-3-carboxylic acidHCID 18439940—
SolventMethanolHCID 887—
ProductMethyl 4-iodo-2-methoxynicotinateHCID 58819970—

Reaction Conditions

Temperature0 °C

Reaction Steps

4-Iodo-2-methoxynicotinic acid (800 mg, 2.87 mmol) is dissolved in MeOH (7 mL) and cooled at 0° C. Trimethylsilyldiazomethane (9 mL, 2M in hexane, 4.5 mmol) is added slowly over 20 minutes. The reaction mixture is brought to room temperature and stirred for 16 hours. The reaction mixture is concentrated and purified by silica gel column chromatography using hexane:ethyl acetate as eluent to afford the desired compound. 1H NMR 400 MHz (DMSO-d6) δ 7.88 (d, 1H, J=5.6 Hz), 7.34 (d, 1H, J=5.6 Hz), 4.12 (s, 3H), 3.84 (s, 1H); MS m/z 294.1 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08546370B2
Source datasetuspto-grants-2013_10
ORD IDord-38bdaf2c97254d0e88dda5193b8834be
Source noteuspto-grants-2013_10