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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1094130Generated: October 29, 2026

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

https://huagongshe.com/reaction/1094130

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 numberUS08133891B2
Source datasetuspto-grants-2012_03
ORD IDord-64f0822c934a410a971df6c830efa65c
Source noteuspto-grants-2012_03