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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 551058Generated: November 3, 2026

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

https://huagongshe.com/reaction/551058

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 numberUS07947677B2
Source datasetuspto-grants-2011_05
ORD IDord-28e5d4c8f6ee4a588cadfab5c92a16ee
Source noteuspto-grants-2011_05