反应详情

To a stirred mixture of phosphorus tribromide (1.20 g, 4.43 mM) and dry ether (100 ml) was added a solution (20 ml) of 4-(4-methylthiophenoxy)benzyl alcohol (3.00 g, 12.1 mM) in dry ether at the room temperature, and the mixture was stirred for 12 h at the same temperature. The mixture was poured into ice water, and the mixture was extracted with ether. The extract was washed with saturated sodium hydrogen carbonate solution and brine, dried with magnesium sulfate, and concentrated in vacuo to give 4-(4-methylthiophenoxy)benzyl bromide (2.39 g, 64%) as colorless crystals, m.p.32.9° C.

1. extractionthe mixture was extracted with ether
2. washThe extract was washed with saturated sodium hydrogen carbonate solution and brine
3. dry with materialdried with magnesium sulfate
4. concentrationconcentrated in vacuo