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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 429074Generated: October 30, 2026

5-Fluoroisatin → 5-fluoro-1,3-dihydro-2H-indol-2-one

https://huagongshe.com/reaction/429074

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-FluoroisatinHCID 236566—
SolventHydrazine hydrate (1:1)HCID 24654—
Product5-fluoro-1,3-dihydro-2H-indol-2-oneHCID 3731012—

Reaction Steps

5-Fluoroisatin (8.2 g) was dissolved in 50 mL of hydrazine hydrate and refluxed for 1.0 hr. The reaction mixtures were then poured in ice water. The precipitate was then filtered, washed with water and dried under vacuum oven afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06316429B1
Source datasetuspto-grants-2001_11
ORD IDord-7a200d875b6349f595cc53b8b01a2c01
Source noteuspto-grants-2001_11