反应详情

2,2'-Bis(bromomethyl)-1,1'-biphenyl (3.40 grams, 10 mmole) was added to the addition funnel and dissolved in 10 mL of dry THF. The dibromo compound may be obtained by the free radical catalyzed halogenation of 2,2'-bitolyl. The flask containing the dibenzophospholyl anion is chilled with a water-ice bath. The mixture was stirred vigorously as the dibromo compound was added dropwise to the chilled solution over 30 minutes. The solution color lightened by the end of the addition. The resulting mixture was allowed to stir at room temperature for an additional five hours. Methanol (5 mL) was added to quench out any remaining anion and resulted in a pale yellow mixture.