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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 982844Generated: October 30, 2026

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

https://huagongshe.com/reaction/982844

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 1 N NaOH solution (20 ml) and extracted with ethyl acetate. The organic phase was 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 numberUS06861440B2
Source datasetuspto-grants-2005_03
ORD IDord-f9976f634f904d53b29c924c80e6e568
Source noteuspto-grants-2005_03