Potassium Carbonate → Benzo(G)chrysene

Participants

Reaction Steps

24.0 g of 9-[2-(2-methoxyvinyl)phenyl]phenanthrene and 100 mL of dichloromethane were placed. 6 drops of methanesulfonic acid was added by means of a Pasteur pipette while stirring at room temperature. The stirring was conducted at room temperature for 8 hours. After completion of the reaction, 100 mL of an aqueous 10% potassium carbonate solution was added. An aqueous phase was removed, and an organic phase was washed with saturated saline and dried with magnesium sulfate. After filtering off magnesium sulfate, the organic phase was concentrated. The residues were purified by silica gel column chromatography, whereby 5.21 g (yield 25%) of benzo[g]chrysene as an intended product was obtained.

Provenance & Evidence