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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1910825Generated: November 3, 2026

4-Methylidene-1-(4-nitrophenyl)piperidine → HCID 67106225, compound

https://huagongshe.com/reaction/1910825

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Methylidene-1-(4-nitrophenyl)piperidineHCID 67106954—
SolventEthyl AcetateHCID 8857—
ProductHCID 67106225HCID 6710622575.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 4-methylene-1-(4-nitrophenyl)-piperidine (230 mg, 1.05 mmol) in ethyl acetate (5 mL) was added stannous chloride dihydrate (1.19 g, 5.2 mmol). The mixture was heated to 60° C. and maintained for 4 hrs. The mixture was evaporated to dryness then sodium hydroxide solution was added to give a final pH of 8. The mixture was extracted with ethyl acetate and the combined organic layers were washed with water, then brine, and then dried. Concentration under reduced pressure afforded 4-methylene-1-(4-aminophenyl)-piperidine (150 mg, 75%) as a semisolid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08604029B2
Source datasetuspto-grants-2013_12
ORD IDord-5cd2ad4c006f433eb11f6f2d0064f6a8
Source noteuspto-grants-2013_12