Phosphorus oxybromide → HCID 21106556, compound

Participants

Reaction Steps

2-(4-Phenylsulfanyl-phenyl)-2,3-dihydro-phthalazine-1,4-dione (0.10 g, 0.29 mmol) and phosphorus oxybromide (0.33 g, 12 mmol) were stirred at 150° C. for 40 min. H2O (50 ml) was added after cooling to RT. Extraction with DCM, drying of the combined organic phases over Na2SO4, evaporation of the solvent and purification of the raw product by chromatography over silica gel with heptane:DCM (2:1 to 0:1) gave the desired compound (0.10 g, 86%). 1H-NMR: (400 MHz, D6-DMSO) 8.36 (1H, d), 8.11 (1H, d), 8.00 (2H, m), 7.65 (2H, d), 7.44 (7H, m); MS (ESI+)=411.2 (M+H)+.

Provenance & Evidence