Sulfuric Acid → HCID 73979917, compound

Participants

Reaction Steps

Under an inert atmosphere, 4-bromobenzophenone (3.917 g, 15 mmol), and 9,10-bis-(diethylphosphonomethyl)anthracene (2.942 g, 6.15 mmol) were dissolved in tetrahydrofuran (40 g). At room temperature, tetrahydrofuran (16.38 g) solution of tert-butoxy potassium (2.070 g, 18.45 mmol) was added dropwise for 5 minutes, and successively stirred for 3.5 hours. The reaction mixture was charged into water (100 ml) and neutralized with 5% sulfuric acid. After neutralization, the crystal was filtrated and the dissolved in tetrahydrofuran (300 ml). Then, the solvent was partly distilled off under reduced pressure, and cooled to deposit crystal. The crystal was filtrated and dried to give the desired product. (Yield: 1.10 g, 26%)

Provenance & Evidence