Cyclohexylamine → N-cyclohexyl-4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxamide

Participants

Reaction Steps

Cyclohexylamine (2.0 mL, 18.20 mmol) was added to a solution of Compound 1 (2.25 g, 9.1 mmol) in toluene (20 mL) and refluxed for 4 h. The solution was cooled and the solvent was evaporated under vacuum. The residue obtained was suspended in water, briefly sonicated, and filtered to yield 1.9 g (70%) of white solids. M.P. 145° C. 1H NMR (DMSO-d6): δ 1.26 (m, 1H), 1.38 (m, 4H), 1.54 (m, 1H), 1.68 (m, 2H), 1.86 (m, 2H), 3.62 (s, 3H), 3.87 (m, 1H), 7.37 (t, J=7.5 Hz, 1H), 7.63 (d, J=8.5 Hz, 1H), 7.80 (t, J=8.4 Hz, 1H), 8.09 (d, J=7.8 Hz, 1H), 10.46 (s, 1H), 17.46 (s, 1H). EIMS m/z 301 (M+1), 323 (M+23). Anal. (C17H20N2O3) C, H, N.

Provenance & Evidence