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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 244062Generated: October 31, 2026

Hydrochloric Acid → HCID 66841260, compound

https://huagongshe.com/reaction/244062

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantDichloromethane methanolHCID 21226129—
ReactantHCID 86649788HCID 86649788—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 66841260HCID 6684126096%

Reaction Steps

To a solution of 1.82 g (3.9 mmol) of 3,5-dichloro-2′-{4-chloro-3-[3-(dimethylamino)propoxy]phenyl}-2,3′-bipyridine-6′-carboxylate in 50 mL of EtOH and 10 ml of water is added 0.34 g (6.06 mmol) of KOH. The reaction medium is stirred for 18 hours at room temperature, and then concentrated under reduced pressure. The residue obtained is taken up in 6.1 mL of aqueous 1N HCl solution (6.1 mmol) and 100 ml of a 9/1 DCM/MeOH mixture. The organic phase is dried over Na2SO4 and then concentrated under reduced pressure, to give 1.8 g of 3,5-dichloro-2′-{4-chloro-3-[3-(dimethylamino)propoxy]phenyl}-2,3′-bipyridine-6′-carboxylic acid in the form of a gum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653276B2
Source datasetuspto-grants-2014_02
ORD IDord-9bcdf898927d49e8b1731c230c450968
Source noteuspto-grants-2014_02