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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 870119Generated: October 30, 2026

Hydrochloric Acid → 1156914-56-5

https://huagongshe.com/reaction/870119

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 58473571HCID 58473571—
SolventEthanolHCID 702—
SolventDichloromethaneHCID 6344—
Product1156914-56-5HCID 4353108875%

Reaction Conditions

Temperature80 °C

Reaction Steps

N(4-(4-bromophenoxy)butyl)phthalimide (6.01 g, 16.1 mmol) is dissolved in ethanol (200 mL) under nitrogen, followed by the addition of hydrazine monohydrate (7.8 mL, 161 mmol). The reaction was refluxed at 80° C. for 2 hours. Once reaction completed (solids formed at the top layer), cooled reaction to room temperature and neutralized with 1M HCl (50 mL). The mixture is allowed to stir until all solids are completely dissolved and diluted with dichloromethane (150 mL). The solution was extracted with two portions of saturated NaHCO3 (2×). The organic layers were combined, washed with brine and water, then dried over MgSO4, and filtered. Removal of solvent yields a yellow oil (2.93 g, 75%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08969509B2
Source datasetuspto-grants-2015_03
ORD IDord-434b93d8db8b4ef8a0cadfad4b5702c9
Source noteuspto-grants-2015_03