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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 555859Generated: October 26, 2026

(Diethylamino)sulfur trifluoride → 2-Fluoro-3-(4-fluorotetrahydro-2H-pyran-4-YL)pyrazine

https://huagongshe.com/reaction/555859

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(Diethylamino)sulfur trifluorideHCID 123472—
Reactant4-(3-Fluoropyrazin-2-YL)tetrahydro-2H-pyran-4-OLHCID 59351230—
SolventDichloromethaneHCID 6344—
Product2-Fluoro-3-(4-fluorotetrahydro-2H-pyran-4-YL)pyrazineHCID 59351135—

Reaction Steps

To a solution of 4-(3-fluoropyrazin-2-yl)tetrahydro-2H-pyran-4-ol (0.123 g, 0.621 mmol) in DCM (2 mL) cooled to 0° C. was added dropwise dast (0.164 mL, 1.241 mmol). The resulting mixture was stirred for 2 hr. Reaction was quenched with dropwise addition of saturated NaHCO3 solution and back extracted with DCM to produce product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08053438B2
Source datasetuspto-grants-2011_11
ORD IDord-f6d5830ddd86440fa0af1512dadf484c
Source noteuspto-grants-2011_11