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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2303322Generated: October 26, 2026

Hydrazine → 6-Hydrazinyl-3,4-dihydroisoquinolin-1(2H)-one

https://huagongshe.com/reaction/2303322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant6-Fluoro-1,2,3,4-tetrahydroisoquinolin-1-oneHCID 10725709—
Solvent1,4-DioxaneHCID 31275—
Product6-Hydrazinyl-3,4-dihydroisoquinolin-1(2H)-oneHCID 12971965—

Reaction Steps

A solution of 6-fluoro-3,4-dihydro-2H-isoquinolin-1-one (3.6 g, 0.022 mole) and hydrazine (17.3 mL, 0.55 mole) was stirred at reflux in dioxane (150 mL) under nitrogen for 48 hours. The reaction mixture was concentrated under vacuo, water added (150 mL), and the product isolated by filtration. The product was thoroughly washed with diethyl ether to give the titled compound quantitatively as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06432974B1
Source datasetuspto-grants-2002_08
ORD IDord-80105be5fd564cd68b44f92c85e3fd04
Source noteuspto-grants-2002_08