Hydrazine hydrate (1:1) → HCID 136186316, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of ethyl 2-(4-((diethylamino)methyl)phenyl)-4-oxo-3-p-tolyl-1,2,3,4-tetrahydroquinoline-5-carboxylate (320 mg) in hydrazine monohydrate (2 mL, 85%) and methanol (10 mL) was stirred at 30° C. for overnight. Methanol was removed under reduced pressure. The crude product was purified by chromatography (silica gel, petroleum ether/ethyl acetate=1:1) to give the title compound (85 mg, yield 29%). LC-MS (ESI) m/z: 439 (M+1)+. 1H-NMR (400 MHz, DMSO-d6) δ (ppm): 0.93 (t, 6H), 2.20 (s, 3H), 2.39 (q, 4H), 3.42 (d, 2H), 4.27 (d, J=8.0 Hz, 1H), 4.73 (d, J=8.0 Hz, 1H), 6.98-7.00 (m, 4H), 7.15-7.17 (m, 3H), 7.22-7.24 (m, 2H), 7.35-7.38 (m, 2H), 7.54-7.56 (m, 1H), 12.12 (s, 1H).

Provenance & Evidence