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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 614899Generated: October 30, 2026

Sulfuryl chloride → 4,5-Dichloro-1H-indole-2,3-dione

https://huagongshe.com/reaction/614899

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuryl chlorideHCID 24648—
Reactant4-ChloroisatinHCID 96047—
Product4,5-Dichloro-1H-indole-2,3-dioneHCID 513998070%

Reaction Steps

Chlorination of 4-chloroisatin with sulfuryl chloride by the method of B. R. Baker, et al., J. Org. Chem., 17, 149 (1952), gave a 70% yield of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04146718
Source datasetuspto-grants-1979_03
ORD IDord-2e9da5e8005d4e098dd9dcb6bdeff0b7
Source noteuspto-grants-1979_03