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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1729883Generated: October 30, 2026

Hydrochloric Acid → DU 19111

https://huagongshe.com/reaction/1729883

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

Temperature100 °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 (100° 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 numberUS03989842
Source datasetuspto-grants-1976_11
ORD IDord-112bb5a96d77482d9c65348b224e958f
Source noteuspto-grants-1976_11