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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1873761Generated: November 3, 2026

Hydrochloric Acid → HCID 53401839, compound

https://huagongshe.com/reaction/1873761

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMalonic AcidHCID 867—
ReactantPiperidineHCID 8082—
Reactant6-Bromopyridine-2-carbaldehydeHCID 2757009—
SolventPyridineHCID 1049—
ProductHCID 53401839HCID 53401839—

Reaction Steps

10 g (53.8 mmol) of 6-bromo-pyridine-2-carbaldehyde were dissolved in 70 ml of pyridine and 6.73 g (64.5 mmol) of malonic acid and 457 mg (5.4 mmol) of piperidine were added. The reaction mixture was boiled under reflux for 6 h. The solution was cooled to room temperature and then poured onto ice. Concentrated hydrochloric acid was added until pH=5, whereupon the product precipitated. The product was isolated by filtration and dried under reduced pressure. Yield: 9.85 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304438B2
Source datasetuspto-grants-2012_11
ORD IDord-a00d812d49ae462f81cf7947bcacb6ed
Source noteuspto-grants-2012_11