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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 457674Generated: October 30, 2026

Hydrochloric Acid → HCID 14662153, compound

https://huagongshe.com/reaction/457674

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPhthalimideHCID 6809—
ReactantHydrazineHCID 9321—
ReactantHCID 14662145HCID 14662145—
SolventMethanolHCID 887—
ProductHCID 14662153HCID 14662153—

Reaction Steps

A mixture of the phthalimide such as 2-[5-(1H-1-pyrazolyl)pentyl]-1,3-isoindolinedione and hydrazine (one equivalent) in methanol were heated to reflux temperature for 12 hours and cooled. 1 N HCl (1–5 equivalents) was added and the mixture was filtered and washed with methanol and water and then concentrated to give 5-(1H-1-pyrazolyl)-1-pentanamine as a viscous oil. (Scheme 1G)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07189720B2
Source datasetuspto-grants-2007_03
ORD IDord-dc6e0c84a07b4c01962e167edefbb059
Source noteuspto-grants-2007_03