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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2426216Generated: November 2, 2026

4-Chloro-1,2-diaminobenzene → 5-Chloro-2,1,3-benzoselenadiazole

https://huagongshe.com/reaction/2426216

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-1,2-diaminobenzeneHCID 7263—
ReactantSelenium DioxideHCID 24007—
SolventEthanolHCID 702—
Product5-Chloro-2,1,3-benzoselenadiazoleHCID 413575—

Reaction Steps

A solution of 4-chlorobenzene-1,2-diamine (1.50 g, 10.5 mmol) in EtOH (15 mL) was heated to reflux and selenium dioxide (1.28 g, 11.5 mmol) was added. The reaction was refluxed for 30 min and cooled to ambient temperature. The precipitated solid was filtered, washed thoroughly with H2O and dried under high vacuum to give the title compound. MS: m/z=219 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968540B2
Source datasetuspto-grants-2011_06
ORD IDord-56ad2d7fc39c483c8dd89b748c83a855
Source noteuspto-grants-2011_06