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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 551059Generated: October 31, 2026

Nitric Acid → 5-Chloro-4-nitro-2,1,3-benzoselenadiazole

https://huagongshe.com/reaction/551059

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
Reactant5-Chloro-2,1,3-benzoselenadiazoleHCID 413575—
SolventWaterHCID 962—
SolventSulfuric AcidHCID 1118—
Product5-Chloro-4-nitro-2,1,3-benzoselenadiazoleHCID 4366221—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 5-chloro-2,1,3-benzoselenadiazole from Step A (800 mg, 1.80 mmol) in conc. H2SO4 (12 mL) was cooled to 0° C. and 90% HNO3 (0.8 mL) was added. After 30 min the reaction was cooled to 0° C. and diluted with H2O (10 mL). The solid was filtered off and washed with cold 1420 to yield the title compound. MS: m/z=263 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07947677B2
Source datasetuspto-grants-2011_05
ORD IDord-82b6c0aafb1a4ebd8d99f96968380237
Source noteuspto-grants-2011_05