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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 584114Generated: November 1, 2026

Hydrazine hydrate (1:1) → HCID 22343040, compound

https://huagongshe.com/reaction/584114

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 22343414HCID 22343414—
SolventEthanolHCID 702—
ProductHCID 22343040HCID 2234304058%

Reaction Steps

To 2,2-dimethyl-2,3-dihydro-1H-4,9a-diaza-fluoren-9-one (1.5 g, 7.0 mmol) in EtOH (17.5 mL), hydrazine hydrate (0.98 mL) was added and the mixture was heated at reflux for 3½ h. Crystallization provided 0.994 g (58%) of 4-(3-amino-2,2-dimethyl-propylamino)-2H-phthalazin-1-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06924284B2
Source datasetuspto-grants-2005_08
ORD IDord-e2428fae6eaf45a1a96fe7631cb4dd1d
Source noteuspto-grants-2005_08