1,1'-Thiocarbonyldiimidazole → HCID 86617519, compound

Participants

Reaction Steps

To a solution of 2-(3-chloro-2-fluorophenyl)-3-(3,4-diaminophenyl)-3-hydroxy-2,3-dihydro-1H-isoindol-1-one (575 mg, 1.49 mmol) in tetrahydrofuran (2.0 mL) was added 1,1′-thiocarbonyldiimidazole (400 mg, 2.25 mmol) at room temperature and stirred for 4 h. The reaction mixture was concentrated in vacuo and the residue was purified by column chromatography (SiO2, hexanes/ethyl acetate) to afford 2-(3-chloro-2-fluorophenyl)-3-hydroxy-3-(2-thioxo-2,3-dihyro-1H-benzimidazol-5-yl)-2,3-dihyro-1H-isoindol-1-one (530 mg, 84%) as an off-white powder. 1H NMR (400 MHz, d6-DMSO): 12.58 (s, 1H), 12.50 (s, 1H), 7.90 (s, 1H), 7.89 (s, 1H), 7.70-7.60 (m, 2H), 7.51 (t, 1H), 7.32 (d, 1H), 7.30 (t, 1H), 7.19 (t, 1H), 7.14 (s, 1H), 7.05 (d, 1H), 6.94 (d, 1H); MS (EI) for C21H13ClFN3O2S: 426 (MI).

Provenance & Evidence