Hydrazine hydrate (1:1) → HCID 136344732, compound

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Reaction Conditions

Reaction Steps

A mixture of methyl 2-(3-(diethoxymethyl)phenyl)-4-oxo-3-phenyl-1,2,3,4-tetrahydroquinoline-5-carboxylate and ethyl 2-(3-(diethoxymethyl)phenyl)-4-oxo-3-phenyl-1,2,3,4-tetrahydroquinoline-5-carboxylate (160 mg, 0.36 mmol) in 85% hydrazine monohydrate (4 mL) and methanol (3 mL) was stirred at 25° C. for overnight. The mixture was extracted with ethyl acetate (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous sodium sulfate, and concentrated to give the 8-(3-(diethoxymethyl)phenyl)-9-phenyl-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one (90 mg, yield 58%) as a yellow solid. LC-MS (ESI) m/z: 442 (M+1)+.

Provenance & Evidence