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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1700155Generated: October 26, 2026

3-Fluorophenylhydrazine hydrochloride → 8-[2-(3-fluorophenyl)hydrazinyl]pyrrolo[2,3-g][1,3]benzothiazol-7-one

https://huagongshe.com/reaction/1700155

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Fluorophenylhydrazine hydrochlorideHCID 2723914—
Reactant6H-thiazolo[5,4-e]indole-7,8-dioneHCID 11745756—
SolventEthanolHCID 702—
Product8-[2-(3-fluorophenyl)hydrazinyl]pyrrolo[2,3-g][1,3]benzothiazol-7-oneHCID 17851700760.2%

Reaction Conditions

Temperature70 °C

Reaction Steps

6H-1-Thia-3,6-diaza-as-indacen-7,8-dione (Procedure A, 50 mg, 0.25 mmol) was combined with 3-fluorophenylhydrazine hydrochloride (50 mg, 0.3 mmol) in 2 ml of ethanol and heated at 70° C. for 6 hrs. The product was collected by filtration of the hot solution, washing with ethanol and diethyl ether, to give 47 mg (60%) of the title compound as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06350747B1
Source datasetuspto-grants-2002_02
ORD IDord-0a6edc3368684b8f86345a2681923d4e
Source noteuspto-grants-2002_02