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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1245831Generated: November 1, 2026

Dimethylformamide → HCID 21914371, compound

https://huagongshe.com/reaction/1245831

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant4,4-DifluoropiperidineHCID 2758352—
ReactantHCID 11100743HCID 11100743—
SolventWaterHCID 962—
ProductHCID 21914371HCID 21914371—

Reaction Conditions

Temperature60 °C

Reaction Steps

2-(2-Bromophenoxy)ethyl tosylate (1.86 g), 4,4-difluoropiperidine (0.73 g) and potassium carbonate (0.97 g) were mixed with dimethylformamide (30 ml) and heated to 60° C. for 18 h. The mixture was cooled and added to water (300 ml). The mixture was extracted with diethyl ether (×3), dried and evaporated. Purification was achieved using cation exchange chromatography eluting with ammonia/methanol/dichloromethane mixtures yielding, 4-difluoro-(2-(2-bromophenoxy)ethyl)piperidine (0.77 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07125896B2
Source datasetuspto-grants-2006_10
ORD IDord-7f35c1505ac54da3841468653def73a8
Source noteuspto-grants-2006_10