反应详情

温度

100 °C

2-(4-octylphenyl)ethanol (5) (46.9 g) is added within 10 min to an aqueous solution containing 3.05 g Na2SO3, 252.9 g 48% HBr and 3.2 g tricaprylmethylammonium chloride. The reaction mixture is heated to 100° C. for 18 to 22 hours with stirring. The resulting 2-phase mixture is cooled to room temperature, diluted with toluene (150 ml) and the aqueous phase is then removed. The organic phase is washed twice with a volume of 100 ml of a 9% NaHCO3 solution. The organic phase is treated with basic aluminium oxide, then filtered. The filter residue is washed with toluene (50 ml) and evaporated to yield compound (19) as a clear pale yellow oil. The resulting Compound (19) has the same physico-chemical characteristics as indicated in Example 14.

1. temperatureThe resulting 2-phase mixture is cooled to room temperature
2. customthe aqueous phase is then removed
3. washThe organic phase is washed twice with a volume of 100 ml of a 9% NaHCO3 solution
4. additionThe organic phase is treated with basic aluminium oxide
5. filtrationfiltered
6. washThe filter residue is washed with toluene (50 ml)
7. customevaporated