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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 460170Generated: October 29, 2026

Hydrazine hydrate (1:1) → HCID 18771814, compound

https://huagongshe.com/reaction/460170

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-[3-(1-Piperidinylmethyl)-2-pyridinyl]-1H-isoindole-1,3(2H)-dioneHCID 18771621—
SolventEthanolHCID 702—
ProductHCID 18771814HCID 18771814—

Reaction Steps

2-(Phthalimidyl)-3-(1-piperidinylmethyl)-pyridine (196 mg, 0.609 mmol) was dissolved in EtOH (95%, 2 mL) at 23° C., and treated with hydrazine monohydrate (0.0320 mL, 0.670 mmol) in a dropwise fashion. The resulting mixture was warmed to reflux and stirred for 3 h at reflux. The solution was treated with additional hydrazine monohydrate (0.150 mL, 3.050 mmol), and reflux continued. After 14 h at reflux, the mixture was cooled to RT, and concentrated using a rotary evaporator to a white paste. The resulting white paste was dissolved in CHCl3: IpOH (3:1, 75 mL), and washed with saturated NaHCO3 (3×50 mL), and H2O (1×50 mL). The organic layer was dried over MgSO4 and concentrated in vacuo to provide the title compound as a white solid. MS m/z: 192 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07196104B2
Source datasetuspto-grants-2007_03
ORD IDord-25d8e01d0aaa44c59b971f14448c0d0f
Source noteuspto-grants-2007_03