Sodium Iodide → 1-Benzyloxy-2-iodoethane
Reaction equation
BrC1C=CC(S(O[CH2:12][CH2:13][O:14][CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)(=O)=O)=CC=1.[I-:22].[Na+]>CC(C)=O>[I:22][CH2:12][CH2:13][O:14][CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of (benzyloxy)ethyl 4-bromobenzenesulfonate (Preparation 89, 6.92 g, 19.5 mmol) in acetone (60 ml) was added sodium iodide (5.84 g, 39.0 mmol) and the reaction mixture was left to stir at room temperature for 16 h. The resulting precipitate was filtered and the filtrate was concentrated in vacuo. The crude residue was dissolved in dichloromethane and washed with aqueous sodium thiosulphate solution and then with water (2×60 ml). The organic layer was dried (Na2SO4) and concentrated in vacuo to give the title compound as a pale brown oil (4.5 g, 88%).