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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 968190Generated: October 29, 2026

Hydrazine hydrate (1:1) → HCID 22288370, compound

https://huagongshe.com/reaction/968190

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1,4-DichlorophthalazineHCID 78490—
SolventEthanolHCID 702—
ProductHCID 22288370HCID 22288370—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a stirred solution of hydrazine hydrate (40 ml) in ethanol (120 mL) at 80° C. was added 1,4-dichlorophthalazine (20 g). This reaction, mixture was stirred at 80° C. for 0.5 hours, then left to cool and the product was collected by filtration and dried under vacuum to give 1-chloro-4-hydrazinophthalazine hydrochloride (14.6 g). 1H NMR (250 MHz, DMSO)•4.64 (2H, vbs), 7.2 (1H, vbs), 7.92 (4H, bm).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06958334B2
Source datasetuspto-grants-2005_10
ORD IDord-1567ec331f6949c5aed70efc18ff2919
Source noteuspto-grants-2005_10