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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 553531Generated: October 29, 2026

Methylamine → HCID 57742969, compound

https://huagongshe.com/reaction/553531

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 numberUS08048894B2
Source datasetuspto-grants-2011_11
ORD IDord-643999c9230743fca3c82a458febd0d5
Source noteuspto-grants-2011_11