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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1695927Generated: November 2, 2026

Ethyl Acetate → Methyl 2-(2-(piperidin-1-yl)ethylamino)-3-fluorobenzoate

https://huagongshe.com/reaction/1695927

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantN-(2-Aminoethyl)piperidineHCID 33944—
ReactantMethyl 2,3-difluorobenzoateHCID 2782927—
SolventDimethylformamideHCID 6228—
ProductMethyl 2-(2-(piperidin-1-yl)ethylamino)-3-fluorobenzoateHCID 5777446263%

Reaction Conditions

Temperature100 °C

Reaction Steps

Methyl 2,3-difluorobenzoate (0.816 g, 4.741 mmol) and 2-(piperidin-1-yl)ethanamine (2.7 mL, 18.93 mmol) were dissolved in DMF (15 mL) and heated in a microwave for 30 mins at 100° C. The reaction mixture was transferred to a separatory funnel with EtOAc (75 mL) the organics washed with 10 ml pure water. The layers were separated and the aqueous layer was extracted with EtOAc (2×50 mL). The crude material was purified by silica gel column chromatography eluting with EtOAc/Hexanes to give methyl 2-(2-(piperidin-1-yl)ethylamino)-3-fluorobenzoate (837 mg, 63%). LC/MS: 281.17 (M+1) Rt=1.63 min (10-90% 3/5 min (grad/run) with formic acid).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163737B2
Source datasetuspto-grants-2012_04
ORD IDord-0fbba02489e94c04858455db722b159f
Source noteuspto-grants-2012_04