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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2238581Generated: October 30, 2026

Pyridine → HCID 68689066, compound

https://huagongshe.com/reaction/2238581

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantThionyl ChlorideHCID 24386—
Reactant7-Fluorochroman-4-olHCID 22404797—
SolventDiethyl EtherHCID 3283—
ProductHCID 68689066HCID 68689066100.2%

Reaction Steps

To a solution of 7-fluorochroman-4-ol (1.80 g, 10.7 mmol, STEP 1) and pyridine (0.35 mL) in diethyl ether (14 mL) was added thionyl chloride (3.9 mL, 53.5 mmol) at 0° C. The reaction mixture was stirred at the same temperature for 3 hours, and evaporated to remove excess thionyl chloride. The residue was quenched with water, and extracted with ethyl acetate. The extract was washed with brine, dried over magnesium sulfate, and concentrated in vacuum to afford the title compound as a pale brown solid (2.0 g, quant.):

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07718809B2
Source datasetuspto-grants-2010_05
ORD IDord-2de9b3cf82744e14b4af8377d049d22f
Source noteuspto-grants-2010_05