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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2353283Generated: October 30, 2026

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

https://huagongshe.com/reaction/2353283

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 numberUS07750010B2
Source datasetuspto-grants-2010_07
ORD IDord-6c93de0dfd37474abbff719770905b1f
Source noteuspto-grants-2010_07