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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1369851Generated: October 30, 2026

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

https://huagongshe.com/reaction/1369851

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 numberUS06579897B2
Source datasetuspto-grants-2003_06
ORD IDord-96928317325a48b5b564bbe9c7e39bdc
Source noteuspto-grants-2003_06