Carbon Dioxide → HCID 14229718, compound

Participants

Reaction Steps

(3)-(i) 2.4 ml of methyl iodide are added dropwise to a solution of 3.9 g of magnesium in 16 ml of tetrahydrofuran and the mixture is stirred at room temperature for 20 minutes. A solution of 11.0 g of 7-bromo-3-phenylbenzofuran in tetrahydrofuran is added dropwise to the mixture and the mixture is refluxed for 4 hours. After cooling, the reaction mixture is poured to dry ice, acidified with 10% hydrochloric acid and extracted with ethyl acetate. The extract is washed with water, dried and evaporated to remove solvent. The residue is recrystallized from ethyl acetate to give 6.31 g of 3-phenylbenzofuran-7-carboxylic acid as pale yellow prisms.

Provenance & Evidence