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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1716552Generated: October 30, 2026

Hydrazine hydrate (1:1) → HCID 178510930, compound

https://huagongshe.com/reaction/1716552

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 178514988HCID 178514988—
SolventEthanolHCID 702—
ProductHCID 178510930HCID 17851093077.2%

Reaction Conditions

Temperature2.5 °C

Reaction Steps

To a solution of 2-[3-(2-phenyl-1H-imidazol-4-yl)-propyl]-isoindole-1,3-dione (4.16 g) in ethanol (50 ml) was added hydrazine hydrate (3.18 g). The reaction mixture was stirred under reflux for 4 h, cooled down to 0-5° C., and the precipitate was filtered off. The filtrate was concentrated, and the oily residue was quenched with cooled 1N NaOH solution (20 ml) and extracted with ethyl acetate. The organic phase washed with brine, dried over magnesium sulphate and concentrated to dryness to obtain 3-(2-phenyl-1H-imidazol-4-yl)-propylamine (1.95 g) as a yellow foam, which was sufficiently pure to be used directly in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07803819B2
Source datasetuspto-grants-2010_09
ORD IDord-3a42844c146c43f3b5fed50a785344f8
Source noteuspto-grants-2010_09