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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1723994Generated: November 1, 2026

Hydrochloric Acid → HCID 57436867, compound

https://huagongshe.com/reaction/1723994

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 57436868HCID 57436868—
SolventAcetoneHCID 180—
SolventWaterHCID 962—
ProductHCID 57436867HCID 5743686780.4%

Reaction Steps

To a solution containing 2-mercapto-3-methyl-chromen-4-one (2.26 g, 11.76 mmol) and potassium carbonate (1.62 g, 11.76 mmol) in acetone (120 mL) was added iodomethane (807 μL, 12.93 mmol). The reaction stirred under nitrogen atmosphere at room temperature for 16 hours before being concentrated to yield a crude oil. The residue was taken up in water and adjusted to pH 7 with 5% HCl. The resulting aqueous layer was washed with ethyl acetate. The the organic layer was then washed with water and brine, dried over sodium sulfate, filtered, and concentrated to obtain the desired product as a yellow solid (1.95 g, 80% yield), which was taken on to the next step without further purification. 1H NMR (600 MHz, CDCl3): δ 8.21 (d, 1H, J=6.6 Hz), 7.61 (m, 1H), 7.38 (m, 2H), 2.66 (s, 3H), 2.09 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07485283B2
Source datasetuspto-grants-2009_02
ORD IDord-113ba621e48948e197926f8aa9b0212d
Source noteuspto-grants-2009_02