Hydrazine hydrate (1:1) → HCID 86717333, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-[1-methyl-5-phenyl-4-(2-phenylethynyl)pyrazol-3-yl]isoindoline-1,3-dione (300 mg, 0.74 mmol), ethanol (5 mL) and hydrazine hydrate (56 μL, 1.11 mL) was stirred in a sealed tube at 90° C. for 1 h and cooled to room temperature. The reaction mixture was filtered. The filtrate was concentrated in vacuo and purified by column chromatography (silica gel, isohexane/ethyl acetate 7:3 to 1:1) yielding the title compound as a solid (150 mg).

Provenance & Evidence