HCID 15066354, compound → HCID 178526410, compound

Participants

Reaction Steps

A suspension of 1,2-diethoxalylamino-4-nitronapthalene (3.0 g, 7.4 mmol) in 100 ml of 4M hydrochloric acid was refluxed with stirring for 3 h. The mixture was cooled, and the product was isolated by filtration and washed wi water, ethanol and ether. Yield 1.8 g (94%), m.p. >300° C., IR (KBr): 1710 cm-1,1H-NMR (DMSO-d6 ): 7.47-7.83 (m, 2H, ArH), 8.21 (s, 1H,H-5), 8.33-8.73 (m, 2H, ArH), 12.25 (s, 1H,0H), 12,40 (s,1H,0H).

Provenance & Evidence