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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 461972Generated: October 29, 2026

Hydrochloric Acid → HCID 20253304, compound

https://huagongshe.com/reaction/461972

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-(cyclopentyloxy)-1H-isoindole-1,3(2H)-dioneHCID 10263287—
SolventEthanolHCID 702—
ProductHCID 20253304HCID 20253304175.8%

Reaction Steps

A mixture of N-cyclopentyloxyphthalimide (11 g), 100% hydrazine hydrate (2.6 g), and ethanol (30 ml) was heated under reflux for 5 minutes. Concentrated hydrochloride acid (6 ml) was added to the mixture, which was heated under reflux Water (20 ml) was added to the mixture, which was cooled to room temperature, and filtered. The filtrate was evaporated to dryness, ethanol (50 ml) was added to the residue, and a small amount of insoluble material was filtered off. The filtrate was evaporated to dryness, and the residue was recrystallised from ethanol/ether to give cyclopentyloxamine (6.28 g,) 96%), m.p. 156.9°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04064346
Source datasetuspto-grants-1977_12
ORD IDord-e22c48017825466f9565eeb95fc61372
Source noteuspto-grants-1977_12