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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1866757Generated: November 2, 2026

1,1-Dichloroethane → Clopidogrel

https://huagongshe.com/reaction/1866757

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1-DichloroethaneHCID 6365—
ReactantSodium CarbonateHCID 10340—
Reactant4,5,6,7-Tetrahydrothieno(3,2-c)pyridinium chlorideHCID 10176342—
ReactantHCID 131727823HCID 131727823—
SolventWaterHCID 962—
ProductClopidogrelHCID 60606—

Reaction Conditions

Temperature25 °C

Reaction Steps

50 gm. of 4,5,6,7-tetrahydrothieno(3,2-c)pyridine hydrochloride was charged in 1 liter reaction vessel containing 500 ml. water and 75.4 gm. sodium carbonate and stirred for 1 hour. 75 gm. of methyl-1-bromo-(2-chlorophenyl) acetate in 250 ml. dichloroethane was added, stirred at 25° C. for 8 hours. The organic layer was separated and washed with water, and distilled the dichloroethane to obtain Clopidogrel base as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07629465B2
Source datasetuspto-grants-2009_12
ORD IDord-e8b4827a21f2401a904515b5411ad34f
Source noteuspto-grants-2009_12