Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 513287Generated: October 30, 2026

Hydrochloric Acid → HCID 178469848, compound

https://huagongshe.com/reaction/513287

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium ThiosulfateHCID 24477—
ReactantChlorosuccinimideHCID 31398—
ReactantHCID 178469844HCID 178469844—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 178469848HCID 17846984877.9%

Reaction Steps

To a solution of ethyl 4,6-dihydroxynicotinate (1.0 g, 5.43 mmol) in DMF (10 mL) was added NCS (797 mg, 5.96 mmol) and conc. HCl (0.05 mL). After stirring at room temperature for 2.5 h, it was added water and Na2S2O3, the precipitate was collected by filtration, washed with 1N HCl and dried to give ethyl 5-chloro-4,6-dihydroxynicotinate (920 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09102625B2
Source datasetuspto-grants-2015_08
ORD IDord-cade962f176d46f7bb417be6303cc58e
Source noteuspto-grants-2015_08