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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 432653Generated: October 31, 2026

Methanol → HCID 18760017, compound

https://huagongshe.com/reaction/432653

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 924930HCID 924930—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
ProductHCID 18760017HCID 1876001786%

Reaction Conditions

Temperature70 °C

Reaction Steps

2′,4′-Difluoropropionanilide (7.17 g, 38.7 mmol) was dissolved in tetrahydrofuran (30 ml), followed by the addition of lithium aluminum hydride (7 g, 184 mmol). The resulting mixture was stirred at 70° C. for 7 hours. Under ice-water cooling, methanol (10 ml) was added to decompose excess lithium aluminum hydride. A saturated aqueous solution of ammonium chloride (100 ml) was then added to the reaction mixture, and a precipitate was filtered off. The filtrate was extracted with chloroform, and the organic layer was dried over anhydrous sodium sulfate. The solvent was distilled off and the residue was separated and purified by chromatography on a silica gel column (silica gel 5 g, chloroform), whereby the title compound was obtained as a pale liver-brown oil (5.7 g, 86.0%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06664256B1
Source datasetuspto-grants-2003_12
ORD IDord-9916475f21514a0a804b85851af76dcb
Source noteuspto-grants-2003_12