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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 452398Generated: October 30, 2026

Potassium Carbonate → HCID 44481359, compound

https://huagongshe.com/reaction/452398

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantPyrrolidineHCID 31268—
ReactantHCID 67155666HCID 67155666—
SolventAcetonitrileHCID 6342—
ProductHCID 44481359HCID 4448135948.7%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 2-(bromomethyl)-7-[(trifluoromethyl)sulfonyl]-4H-1,3-benzodioxine (0.40 g, 1.11 mmol), pyrrolidine (0.47 ml, 5.5 mmol), potassiumcarbonate (0.23 g, 1.7 mmol) and ACN (3.0 ml) was heated in a micro wave oven at 150° C. for 15 min. The mixture was filtered and evaporated to dryness. The residue was purified two times on a silica column using EtOAc/MeOH (4:1) and EtOAc/MeOH (9:1) as eluents. The pure fractions were collected and evaporated to afford the title product (0.19 g, 48%). The amine was converted into the fumaric acid salt and crystallized from EtOH/MeOH/DEE. M.p. 184° C. MS m/z (rel. intensity, 70 eV) 351 (M+, 5), 85 (6), 84 (bp), 76 (5), 55 (4).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08492372B2
Source datasetuspto-grants-2013_07
ORD IDord-3a9fb56fce394da6be498db4b7b1336b
Source noteuspto-grants-2013_07