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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1375033Generated: October 26, 2026

Thionyl Chloride → 5-(2-Chloroethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine hydrochloride

https://huagongshe.com/reaction/1375033

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant5-(2-Hydroxyethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridineHCID 17963869—
SolventDichloromethaneHCID 6344—
Product5-(2-Chloroethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine hydrochlorideHCID 17964277—

Reaction Conditions

Temperature40 °C

Reaction Steps

To a solution of 5-(2-hydroxyethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine (0.49 g) in dichloromethane (20 ml) was added dropwise thionyl chloride (0.39 ml). The mixture was stirred at 40° C. for 1.5 hours. After the mixture was evaporated under reduced pressure, the residue was triturated with diisopropyl ether. The resulting powder was collected by filtration, washed with diisopropyl ether and dried in vacuo to give 5-(2-chloroethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine hydrochloride (0.44 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07166598B2
Source datasetuspto-grants-2007_01
ORD IDord-cb91967144034c0f9a44111fbce2ecb7
Source noteuspto-grants-2007_01