反应详情

Sodium azide (13.86 g, 213.2 mmol) was added to a mixture of (RS)-2-(4-chlorophenyl)-2-(4-iodophenyl)oxirane (50.66 g, 142.1 mmol) in acetone (400 ml) and water (40 ml) and the mixture was stirred and held at reflux for 4 days. Upon cooling to room temperature the acetone was removed in vacuo, the residue was dissolved in ethyl acetate (500 ml), washed with water (250 ml) and then with brine (250 ml), the organic layer was separated and the solvent removed in vacuo to afford (RS)-2-azido-1-(4-chlorophenyl)-1-(4-iodophenyl)ethanol (56.77 g, 100%) as a pale yellow oil that slowly solidified upon standing to afford an off-white solid. 1H NMR (DMSO-d6) 7.68 (2H, d), 7.44 (2H, d), 7.38 (2H, d), 7.24 (2H, d), 6.38 (1H, br s), 3.99 (2H, s). MS: [M−H]− 398.

1. temperatureat reflux for 4 days
2. customwas removed in vacuo
3. dissolutionthe residue was dissolved in ethyl acetate (500 ml)
4. washwashed with water (250 ml)
5. customwith brine (250 ml), the organic layer was separated
6. customthe solvent removed in vacuo