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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2053502Generated: October 26, 2026

Hydrochloric Acid → 3,4-Diphenyl-1,2,5-thiadiazole-1,1-dioxide

https://huagongshe.com/reaction/2053502

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzilHCID 8651—
ReactantSulfamideHCID 82267—
SolventMethanolHCID 887—
Product3,4-Diphenyl-1,2,5-thiadiazole-1,1-dioxideHCID 1100010984,416%

Reaction Steps

Hydrogen chloride is bubbled through a solution of benzil (24 g, 0.11 mmol) and sulfamide (11 g, 0.11 mmol) in methanol (120 mL) for 2 h followed by heating to reflux for 2 h. The reaction mixture is cooled to RT, and the precipitate that formed is filtered to give 25.1 g of the product 14.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07326792B2
Source datasetuspto-grants-2008_02
ORD IDord-18133539bc354892a6ad759e7691462d
Source noteuspto-grants-2008_02