Benzene → HCID 69244216, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 9,10-dihydro anthracene-1,5-dicarboxylic acid (52, 1 g, 3.73 mmol) in 200 μl of dimethyl formamide and 20 ml of thionyl chloride was refluxed for 3 hours. The resulting solution was evaporated to dryness under vacuum, 60 ml of benzene added, and warmed to 60° C. to obtain a solution. This solution was slowly added to a 250 ml round bottom flask containing a mixture of AlCl3 and 20 ml of benzene. The resulting mixture was stirred for 18 hours at room temperature and poured into 100 ml of an ice/water mixture containing 10 ml of conc. HCl. The organic layer was separated and the aqueous layer was washed twice with 100 ml portions of benzene. After drying over Na2SO4, the combined organic extracts were dried under vacuum to yield a brown colored crude product. This was further purified by flash column chromatography to obtain a dark yellow, oily product (0.39 g, 27%) (According to NMR studies the product is 80+% pure). 1H NMR (300 MHz, CDCl3): δ 4.04 (s, 4H), 7.20-7.86 (m, 16H), 7.51 (d, 2H, J=6 Hz), 7.70 (d, 2H, J=6 Hz), 13.00 (broad s, 2H). 13C NMR (300 MHz, CDCl3): δ 33.95, 125.48, 126.98, 128.51, 128.55, 129.94, 130.30, 133.24, 135.74, 137.88, 197.15.

Provenance & Evidence