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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 333762Generated: October 31, 2026

Methyl iodide → 1-(2-Methyl-pyridin-4-yl)-2-phenyl-propan-1-one

https://huagongshe.com/reaction/333762

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantSodium hydrideHCID 24758—
Reactant1-(2-Methyl-pyridin-4-yl)-2-phenyl-ethanoneHCID 57421330—
SolventDimethylformamideHCID 6228—
Product1-(2-Methyl-pyridin-4-yl)-2-phenyl-propan-1-oneHCID 5742133157.3%

Reaction Steps

1-(2-Methyl-pyridin-4-yl)-2-phenyl-ethanone (233 mg, 1.1 mmol, solution in 5 mL DMF) was added over 15 min to a suspension of NaH (55% in mineral oil, 58 mg, 1.3 mmol) in DMF (2 mL). After 30 min, methyl iodide (0.07 mL, 1.2 mmol) was added slowly drop by drop. The mixture was poured onto ice and extracted with ethyl acetate. The combined organic layers were washed (brine), dried (Na2SO4), and the solvent was evaporated. Purification by column chromatography (silica gel, heptane:ethyl acetate=100:0-50:50) afforded the title compound (142 mg, 54%). 1H NMR (300 MHz, DMSO-D6) 8.56 (1H, d), 7.68 (1H, s), 7.61 (1H, d), 7.30-7.27 (4H, m), 7.20-7.18 (1H, m), 4.92 (1H, q), 1.40 (3H, d); MS (m/e)=226.3 [MH+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883786B2
Source datasetuspto-grants-2014_11
ORD IDord-d3e5e704b2a74972b33e1e1d9207185b
Source noteuspto-grants-2014_11