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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641421Generated: October 30, 2026

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

https://huagongshe.com/reaction/641421

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 numberUS07696192B2
Source datasetuspto-grants-2010_04
ORD IDord-bed37f7ca7f3401db3d14020443eaead
Source noteuspto-grants-2010_04