反应详情

温度

0 °C

Pentanoyl chloride (50 g) is added dropwise to a stirred, cooled 0° C.) mixture of bromobenzene (150 ml) and aluminum chloride (0.2 g). The mixture is stirred at 0° C. for 1 h, heated at 80° C. for 2 h, cooled and poured into 18% hydrochloric acid. The product is extracted into CHCl3 twice, the combined organic extracts are washed with water and steam distilled to remove chloroform and the excess of bromobenzene. The product is extracted into chloroform twice, the combined organic phases are washed with water and dried (MgSO4). The solvent is removed in vacuo and the residue is distilled (bp 180°-184° C. at 20 mm Hg) to yield a colourless solid.

1. temperatureheated at 80° C. for 2 h
2. temperaturecooled
3. extractionThe product is extracted into CHCl3 twice
4. washthe combined organic extracts are washed with water and steam
5. distillationdistilled
6. customto remove chloroform
7. extractionThe product is extracted into chloroform twice
8. washthe combined organic phases are washed with water
9. dry with materialdried (MgSO4)
10. customThe solvent is removed in vacuo
11. distillationthe residue is distilled (bp 180°-184° C. at 20 mm Hg)
12. customto yield a colourless solid