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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1199686Generated: October 31, 2026

Hydrochloric Acid → HCID 14989659, compound

https://huagongshe.com/reaction/1199686

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSulfur DioxideHCID 1119—
ReactantHCID 14989647HCID 14989647—
ReactantSodium NitriteHCID 23668193—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 14989659HCID 14989659—

Reaction Conditions

Temperature-10 °C

Reaction Steps

Sodium nitrite (6.08 g) in water (12 ml) was added over 20 minutes to a solution of methyl 4-(5-aminopyrid-2-yl)butanoate (7.48 g, 0.04 mole) in glacial acetic acid (20 ml) and concentrated hydrochloric acid (32 ml) stirred at -10° C. The solution was stirred for 15 minutes then added over 15 minutes to a solution of cuprous chloride (2 g) in glacial acetic acid saturated with sulphur dioxide at 10° C. The resulting solution was stirred at room temperature for 1 hour then poured into ice water (250 ml) and extracted with chloroform (3×200 ml). The chloroform extracts were dried over magnesium sulphate and the solvent was removed to give the title compound as a pale green oil which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04902698
Source datasetuspto-grants-1990_02
ORD IDord-d8fa763cdec24de4bb89bc53b5ff7985
Source noteuspto-grants-1990_02