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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2083274Generated: October 30, 2026

Benzaldehyde → HCID 70619511, compound

https://huagongshe.com/reaction/2083274

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantSulfuric AcidHCID 1118—
ReactantPiperidineHCID 8082—
Reactant2-({2-[4-Phenyl-4-(propanoyloxy)piperidin-1-yl]ethyl}amino)benzene-1-carboximidic acidHCID 3050170—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 70619511HCID 70619511—

Reaction Steps

A mixture of 2-[2-(4-propionoxy-4-phenylpiperidino)ethylamino]benzamide (12.55 g), benzaldehyde (3.55 g), piperidine (1.35 g), and absolute ethanol (80 ml) was refluxed for 30 hrs. The solvent was removed on a rotovap. The thick oily product was chromatographed using silica gel and 5% isopropanol in chloroform. The product was isolated and dissolved in 30 ml 95% ethanol The solution was made acid with 4N H2SO4 and then 90 ml H2O was added. After 1 hr, the product was isolated and recrystallized from 850 ml 95% ethanol; yield 8.7 g, m.p. 186°-189° (d).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04085107
Source datasetuspto-grants-1978_04
ORD IDord-04c6ff51afa4428f949433ffa37e1351
Source noteuspto-grants-1978_04