Hydrazine hydrate (1:1) → 8-(4-(Dimethoxymethyl)phenyl)-9-phenyl-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one

Participants

Reaction Conditions

Reaction Steps

Methyl 2-(4-(dimethoxymethyl)phenyl)-4-oxo-3-phenyl-1,2,3,4-tetrahydroquinoline-5-carboxylate (120 mg, 0.28 mmol) and 85% hydrazine monohydrate (20 mL) were added and the mixture was stirred under 40° C. for 3 h. The resulting mixture was evaporated under reduced pressure to 10 mL and then filtered to give 8-(4-(dimethoxymethyl)phenyl)-9-phenyl-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one (89 mg, yield 78%). LC-MS (ESI) m/z: 414 (M+1)+.

Provenance & Evidence