Water → HCID 58473621, compound

Participants

Reaction Steps

2,7-dibromo-9-methyl-9H-fluorene (10.0 g, 29.58 mmol) was dissolved in 50 mL DMSO under nitrogen. To mixture was added KOH (2.01 g, 35.79 mmol), water (1.5 mL), N-(4-bromobutyl)phthalimide (9.93 g, 35.2 mmol), and stirred reaction at room temperature for 2.0 hours, then at 50° C. for 3.0 hours. The reaction was cooled to room temperature and diluted with dichloromethane. The organic layer was washed with brine (2×), and water. Removal of solvent yield a solid, which was purified by column chromatography (7:3, hexanes:EtOAc) to yield white solids (3.08 g, 20%). 1H NMR (500 MHz, CDCl3): δ=7.81-7.83 (m, 2H), 7.68-7.71 (m, 2H), 7.48-7.51 (m, 4H), 7.41-7.44 (dd, 2H), 3.46-3.49 (t, 2H), 2.00-2.04 (p, 2H), 1.47-1.49 (m, 2H), 1.45 (s, 3H), 0.65-0.68 (m, 2H).

Provenance & Evidence