Water → HCID 12813951, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 19.8 gm of 2-chloro-9-cyano-acridine and 120 cc of 90% sulfuric acid was heated for 3 hours at 100°C and then cooled to 15°-20°C. A solution of 15 gm of sodium nitrite in 30 cc of water was added to the reaction mixture and the mixture was heated at 100°C for 2 hours. After cooling, the reaction mixture was added to a mixture of ice and water and then filtered. The precipitate was washed with water and extracted with a 10% aqueous sodium carbonate solution. The solution was made acidic by the addition of 6N hydrochloric acid, was filtered and the precipitate was washed with water and dried to obtain 10.6 gm of 2-chloro-9-carboxy-acridine melting at a temperature above 300°C. The product was used as such for the next step.

Provenance & Evidence