Sulfuric Acid → HCID 20275138, compound

Participants

Reaction Conditions

Reaction Steps

2,4-Dichloronitrobenzene (122 g (0.635 moles)) in 20% fuming sulfuric acid was heated at a temperature of 120° C. to 130° C. for 5 hours with stirring. After completion of the reaction, the reaction mixture was added portionwise to 1.5 l of ice water. The resulting aqueous solution was warmed to 50° C. and 400 g of NaCl was added thereto followed by cooling to room temperature. Crystals which separated out were collected by filtration, washed with water and with acetonitrile and dried.

Provenance & Evidence