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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2211100Generated: November 3, 2026

Hydrazine hydrate (1:1) → HCID 19375607, compound

https://huagongshe.com/reaction/2211100

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-(Thiophene-3-carbonyl)benzoic acidHCID 13554735—
SolventEthanolHCID 702—
ProductHCID 19375607HCID 1937560751.4%

Reaction Steps

1.8 g of o-(3-thenoyl)benzoic acid and 580 mg of hydrazine hydrate were dissolved in 20 ml of ethanol, and the solution was refluxed for 4 hours. After cooling the solution, it was crystallized by adding ether, thereby obtaining 910 mg of 4-(3-thienyl)-1-phthalazinone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05462941
Source datasetuspto-grants-1995_10
ORD IDord-0c5e4e9cb4ef48c4967f66babd00c4b7
Source noteuspto-grants-1995_10