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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1248245Generated: November 1, 2026

Ethanol → HCID 12852073, compound

https://huagongshe.com/reaction/1248245

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantFormaldehydeHCID 712—
Reactant2-Amino-N-{2-[4-(4-fluorobenzoyl)piperidin-1-yl]ethyl}benzene-1-carboximidic acidHCID 3018651—
CatalystSodium HydroxideHCID 14798—
SolventWaterHCID 962—
ProductHCID 12852073HCID 1285207350%

Reaction Steps

A mixture of 6.5 parts of 2-amino-N-[2-[4-(4-fluorobenzoyl)-1-piperidinyl]ethyl]benzamide, 0.5 parts of paraformaldehyde, 3 drops of sodium hydroxide solution 50%, 80 parts of ethanol and 10 parts of water is stirred and refluxed overnight. The reaction mixture is allowed to cool to room temperature while stirring. The precipitated product is filtered off, washed with ethanol and crystallized from 200 parts of ethanol, yielding 3.3 parts (50%) of 3-[2-[4-(4-fluorobenzoyl)-1-piperidinyl]ethyl]-2,3-dihydro-4(1H)-quinazolinone; mp. 203.4° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04522945
Source datasetuspto-grants-1985_06
ORD IDord-aab676c4b055434ead20e113ce209b03
Source noteuspto-grants-1985_06