HCID 67045136, compound → HCID 67044654, compound

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A solution of 3-(4-amino-3-nitrophenyl)-3-hydroxy-2-(phenylmethyl)-2,3-dihydro-1H-isoindol-1-one (10 g, 26.6 mmol) in a mixture of terahydrofuran-ethyl acetate (1:1, 20 mL) was hydrogenated over 10% Pd—C (100 mg) at 40 psi for 18 h. The catalyst was removed by filtration and the filtrate concentrated in vacuo. The residue was purified by column chromatography (SiO2, hexanes/ethyl acetate) to afford 3-(3,4-diaminophenyl)-3-hydroxy-2-(phenylmethyl)-2,3-dihydro-1H-isoindol-1-one (9.0 g, 98%) as a brown powder. MS (EI) for C21H19N3O2: 368 (MNa+).

Provenance & Evidence