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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2279605Generated: November 2, 2026

Tetrahydrofuran → trans-(+/-)-4-(4-Chloro-3-fluorophenoxy)-1-methylpyrrolidin-3-amine

https://huagongshe.com/reaction/2279605

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantTriphenylphosphineHCID 11776—
Reactanttrans-(+)-3-Azido-4-(4-chloro-3-fluorophenoxy)-1-methylpyrrolidineHCID 86705585—
SolventWaterHCID 962—
Producttrans-(+/-)-4-(4-Chloro-3-fluorophenoxy)-1-methylpyrrolidin-3-amineHCID 8670558721%

Reaction Steps

To a solution of 426 (0.480 g, 1.77 mmol), PPh3 (0.930 g, 3.54 mmol) and THF (10 mL) was added H2O (1.0 mL). The resultant mixture was heated at 55° C. for 3 h. The solvent was removed in vacuo. The residue was purified by SiO2 chromatography eluting with DCM/MeOH (5:1 DCM/MeOH then 1:1) to afford 85 mg (21% over 5 steps) of trans-(±)-4-(4-chloro-3-fluorophenoxy)-1-methylpyrrolidin-3-amine (428): LC-MS (ESI) m/z 245 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133187B2
Source datasetuspto-grants-2015_09
ORD IDord-a78a9eb19c284a8fa6d5850d3aab8a1f
Source noteuspto-grants-2015_09