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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443042Generated: November 2, 2026

Formic Acid → HCID 826664, compound

https://huagongshe.com/reaction/1443042

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormic AcidHCID 284—
ReactantFormaldehydeHCID 712—
ReactantPotassium HydroxideHCID 14797—
Reactant4-(4-Fluorobenzoyl)piperidineHCID 2724440—
SolventWaterHCID 962—
ProductHCID 826664HCID 82666498%

Reaction Conditions

Temperature57.5 °C

Reaction Steps

4-Fluorophenyl piperidin-4-yl methanone 1.79 g (8.66 mmol) was added to formic acid (1.5 ml) and formaldehyde 1.05 ml and the reaction mixture was stirred at 55-60° C. for 3 hours. After cooled down, water was added, basified with potassium hydroxide pellets to pH>10 and extracted with ethyl ether 3×50 ml. The combined organic solution was dried over sodium sulfate and concentrated to give 1.88 g of desired product in 98% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07659395B2
Source datasetuspto-grants-2010_02
ORD IDord-6736c9f068b945f183c2166b36e6cc30
Source noteuspto-grants-2010_02