反应详情

A solution of 5.55 g (21 mmol) 1-bromo-3-bromomethyl-5-methyl-benzene and 2.90 ml (21 mmol) (S)-3-acetylsulfanyl-2-methyl-propionic acid in 32 ml methanol is cooled in an ice bath and 4N aqueous sodium hydroxide (15.8 ml, 63 mmol) are added. The reaction mixture is stirred at rt for 3 hrs. EtOAc is added to the mixture and the organic layer is washed with water and brine and evaporated. Filtration over silica gel (flashmaster, hexane to hexane/EtOAc 4/6) gives the title compound.

1. washthe organic layer is washed with water and brine
2. customevaporated
3. filtrationFiltration over silica gel (flashmaster, hexane to hexane/EtOAc 4/6)