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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1801974Generated: October 30, 2026

Methylamine → HCID 57742969, compound

https://huagongshe.com/reaction/1801974

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
ReactantTetrahydrofuranHCID 8028—
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 2,3,4-trifluorobenzoateHCID 2760117—
ReactantHCID 67408030HCID 67408030—
SolventEthyl AcetateHCID 8857—
ProductHCID 57742969HCID 57742969—

Reaction Conditions

Temperature24 °C

Reaction Steps

Methyl 3,4-difluoro-2-(methylamino)benzoate. A mixture of methyl 2,3,4-trifluorobenzoate (available from Oakwood Products, West Columbia, S.C.) (5.00 g, 26 mmol), and potassium carbonate (4.0 g, 29 mmol) was treated with 2M methylamine in THF (17 mL, 34 mmol), and stirred at 24° C. for 18 hours. The mixture was diluted with EtOAc, washed with water, dried over MgSO4, and evaporated. The crude product was purified by flash chromatography (EtOAc/hexanes) to give the title compound. MS (ESI) m/z: Calculated; 201.2: Observed; 202.1. 1H NMR (300 MHz, CDCl3) δ ppm 7.54-7.67 (1H, m), 6.26-6.43 (1H, m), 3.94 (1H, s), 3.84 (3H, s), 3.15 (3H, dd, J=6.8, 5.5 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08349868B2
Source datasetuspto-grants-2013_01
ORD IDord-9ba23915d8d7426784f179f18f7efba1
Source noteuspto-grants-2013_01