Hydrochloric Acid → HCID 178516988, compound

Participants

Reaction Steps

A suspension of 5,6-diamino-1 2 3,4-tetrahydronaphthalene (0.32 g, 2 mmol) in 5 ml of M hydrochloric acid was refluxed with oxalic acid dihydrate (0.38, 3 mmol) for 5 h. After cooling, the precipitate was isolated by filtration, washed with water, ethanol and ether giving 0.31 g (72%) of the title compound; m.p. >300° C.; IR (KBr): 1695 cm-1 (C=0),1H-NMR (DMSO-d6): 1.5-1.9 (m, 4H,2×CH2), 2.5-2.8 (m,4H,2×CH2), 6.63 (d,J=8Hz, 1H, ArH), 6.83 (d,J=8Hz, 1H, ArH), 10.94 (broad s, 1H, 0H), 11.77 (broad s, 1H, 0H)

Provenance & Evidence