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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2420462Generated: November 2, 2026

Hydrochloric Acid → DU 19111

https://huagongshe.com/reaction/2420462

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant3,4-Dichlorophenyl isocyanateHCID 7607—
Reactant2,6-DichlorobenzamideHCID 16183—
ReactantSodiumHCID 5360545—
SolventPyridineHCID 1049—
ProductDU 19111HCID 169688—

Reaction Conditions

Temperature200 °C

Reaction Steps

9.5 g of 2,6-dichlorobenzamide and 10.34 g of 3,4-dichlorophenylisocyanate in 25 ml of pyridine to which 1 g of sodium has been added are heated on a steam bath (200° C+) for 24 hours. The reaction mixture is poured on ice which contains concentrated hydrochlorid acid and the solid precipitate is thoroughly washed with successively water and alcohol. The substance is recristallized from acetonitrile. Melting point 232° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04110469
Source datasetuspto-grants-1978_08
ORD IDord-d75c85911f8d4ca980290fefea475811
Source noteuspto-grants-1978_08